CN113266099A - Modified concrete and large-span floor slab - Google Patents
Modified concrete and large-span floor slab Download PDFInfo
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- CN113266099A CN113266099A CN202110564220.7A CN202110564220A CN113266099A CN 113266099 A CN113266099 A CN 113266099A CN 202110564220 A CN202110564220 A CN 202110564220A CN 113266099 A CN113266099 A CN 113266099A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/28—Cements from oil shales, residues or waste other than slag from combustion residues, e.g. ashes or slags from waste incineration
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
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- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
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- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/644—Damp-proof courses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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Abstract
The invention provides a modified concrete with novel structural design and a large-span floor slab; the paint comprises the following materials in parts by weight: 20-50 parts of limestone, 15-30 parts of clay, 30-40 parts of iron ore, 10-20 parts of coal cinder, 25-40 parts of gypsum, 20-40 parts of sand, 50-80 parts of pebble, 30-40 parts of high polymer, 2-6 parts of modifier, 5-8 parts of enhancer and the balance of water, wherein the modified concrete is prepared by the following steps: s1, preparing raw materials, namely taking 20-50 parts of limestone, 15-30 parts of clay, 30-40 parts of iron ore and 10-20 parts of coal slag, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials; s2, calcining, namely putting the raw material in the S1 into a cyclone separator for preheating. This design utilizes to add high molecular polymer in concrete raw materials for the structural performance reinforcing of making the floor after the concrete sets has good antidetonation, the effect of anti settlement, makes the life of floor obtain the extension, and then makes the anti calamity ability of building promote.
Description
Technical Field
The invention particularly relates to the technical field of building materials, and particularly relates to modified concrete and a large-span floor slab.
Background
The floor slab is an important structure in the building, and the floor slab is formed by pouring concrete, so that the function of supporting an upper building, people and objects is achieved in the building, and a supporting platform is provided for people to walk in the building.
Chinese patent No. 201711116121.2 discloses diatomite modified concrete and a preparation method thereof, wherein the diatomite modified concrete comprises the following components in parts by weight: 15-20 parts of cement, 1-5 parts of diatomite, 6-8 parts of water, 25-30 parts of river sand, 40-45 parts of broken stone and 0.2-0.5 part of water reducing agent.
The structural performance of prior art's floor is relatively poor, lead to the antidetonation of floor, the effect of anti subsiding is relatively poor, make the floor fracture easily, and the corrosion-resistant effect of floor is relatively poor, lead to being located the floor of dark places such as basement to play alkali easily or by corrosion damage, the structural performance of prior art's floor's reinforcing bar is relatively poor, the basis that leads to the floor to pour preceding needs many posts makes, and then makes the span of floor reduce, influence the spatial performance of building. Therefore, there is a need for a modified concrete and a large span floor slab to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, adapt to practical requirements and provide modified concrete with novel structural design and a large-span floor slab.
In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows:
the modified concrete is designed and comprises the following materials in parts by weight: 20-50 parts of limestone, 15-30 parts of clay, 30-40 parts of iron ore, 10-20 parts of coal cinder, 25-40 parts of gypsum, 20-40 parts of sand, 50-80 parts of pebble, 30-40 parts of high polymer, 2-6 parts of modifier, 5-8 parts of enhancer and the balance of water.
The modified concrete is processed by the following steps:
s1, preparing raw materials, namely taking 20-50 parts of limestone, 15-30 parts of clay, 30-40 parts of iron ore and 10-20 parts of coal slag, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials;
s2, calcining, namely preheating the raw material in the step S1 in a cyclone separator, then conveying the raw material into the rotary kiln through the cyclone separator, converting the raw material into clinker under 1450 and 1650, and feeding the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling;
s3, grinding, namely adding 25-40 parts of gypsum and 10-20 parts of modifier into the clinker in the S2, putting into a ball mill for grinding, and screening out larger particles by adopting a rotary vibration sieve to finally prepare powder;
s4, mixing materials, namely putting the powder material in the S3, 20-40 parts of sand, 50-80 parts of stones, 30-40 parts of high polymer and 10-20 parts of reinforcing agent into a stirrer, and adding water for mixing, wherein the rotating speed of the stirrer is 20-300r/min, so as to prepare concrete slurry;
s5, pouring, namely pouring the concrete slurry in the step S4 into a formwork of the pre-supported floor slab, and vibrating by adopting a vibrator while pouring;
s6, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S5 is solidified, spraying water for curing once every 1-2 hours, and taking down the cotton felt after 24-48 hours.
The modifier is prepared by mixing 1-40% of calcium carbonate, 5-60% of modified talcum powder and 20-40% of methyl hydroxyethyl cellulose, and the enhancer is prepared by mixing 3-30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 10-20% of a moisturizing lubricant, 2-30% of sodium dodecyl sulfate, 1-20% of sodium abietate and 5-60% of ethyl hydroxyethyl cellulose.
The high molecular polymer is formed by mixing two or more than two of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, wherein the mass ratio of the styrene-butadiene rubber is less than 50%.
The utility model provides a large-span floor, includes the floor body, the bottom outer wall of floor body is provided with four stands, adjacent two be provided with the circle roof beam between the stand, the bottom outer wall of floor body is provided with the girder, be provided with the auxiliary girder between the both sides outer wall of girder and the circle roof beam, the top outer wall of floor body is provided with and covers the layer, the bottom outer wall of floor body is provided with down the overburden.
The floor slab body includes concrete layer, concrete layer's inside is provided with the reinforcing bar net, the inside of reinforcing bar net is provided with the drain pipe, the reinforcing bar net includes evenly distributed's the muscle of indulging, the bottom of indulging the muscle is tied up through the steel wire and is had evenly distributed's wave muscle.
The waterproof layer is bonded to the outer wall of the top of the upper covering layer, and the wear-resistant layer is arranged on the outer wall of the top of the waterproof layer.
The bottom outer wall of lower overburden is provided with the dampproof course, the bottom outer wall of dampproof course is provided with solidified layer.
The top of the longitudinal bar and the top of the wave bar are connected with an upper transverse bar through steel wires in a binding mode, and the bottom of the longitudinal bar and the bottom of the wave bar are connected with a lower transverse bar through steel wires in a binding mode.
The outer wall of the top of one of the water discharge pipes is welded with an upper connecting pipe, and the outer wall of the bottom of one of the water discharge pipes is welded with a lower connecting pipe.
The invention has the beneficial effects that:
(1) this design utilizes to add high molecular polymer in concrete raw materials for the structural performance reinforcing of making the floor after the concrete sets has good antidetonation, the effect of anti settlement, makes the life of floor obtain the extension, and then makes the anti calamity ability of building promote.
(2) The modifier and the reinforcer are used as additives in the concrete manufacturing process in the design, so that the surface of the concrete after solidification and form removal is smoother, alkali is not easy to generate, and the concrete has a good corrosion-resistant effect, is more suitable for being applied to damp environments such as basements and the like, and prevents a floor slab from being corroded by damp air.
(3) This design utilizes to indulge muscle and wave muscle, utilizes to indulge muscle, wave muscle, down violently muscle and go up to tie up through the steel wire between the muscle and be a stable reinforcing bar net for the bearing capacity of floor obtains promoting, and then makes the span of floor effectively increase, has reduced the use on post basis, makes the inside space broad more of building of establishing.
(4) This design utilizes the drain pipe, utilizes the drain pipe intussuseption to inlay in the inside of floor for the quantity of the concrete that uses when the floor is pour obtains reducing, and can also provide the pipeline use of launching for the fitment in later stage, need not to carry out the pre-buried downcomer of secondary.
Drawings
FIG. 1 is a flow chart in the present design;
FIG. 2 is a schematic diagram of the overall structure of the present design;
FIG. 3 is a schematic cross-sectional view of the present design;
fig. 4 is a schematic view of the reinforcing mesh structure in the present design;
FIG. 5 is an enlarged view at A of the present design;
fig. 6 is an enlarged view at B in the present design.
In the figure: 1 floor slab body, 2 columns, 3 ring beams, 4 upper covering layers, 5 lower covering layers, 6 concrete layers, 7 auxiliary beams, 8 main beams, 9 upper connecting pipes, 10 lower connecting pipes, 11 longitudinal bars, 12 wave bars, 13 lower transverse bars, 14 upper transverse bars, 15 waterproof layers, 16 wear-resistant layers, 17 cured layers, 18 reinforcing mesh, 19 drain pipes and 20 moisture-proof layers.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
example one
The modified concrete shown in figure 1 comprises the following materials in parts by weight: 40 parts of limestone, 15 parts of clay, 30 parts of iron ore, 10 parts of coal cinder, 25 parts of gypsum, 20 parts of sand, 50 parts of stones, 30 parts of high molecular polymer, 2 parts of modifying agent, 5 parts of reinforcing agent and the balance of water.
Further, the modified concrete in the design is processed by the following steps:
s1, preparing raw materials, namely taking 40 parts of limestone, 15 parts of clay, 30 parts of iron ore and 10 parts of coal cinder, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials;
s2, calcining, namely preheating the raw material in the step S1 in a cyclone separator, then conveying the raw material into the rotary kiln through the cyclone separator, converting the raw material into clinker at 1450, and conveying the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling;
s3, grinding, namely adding 25 parts of gypsum and 10 parts of modifier into the clinker in the S2, putting the mixture into a ball mill for grinding, and screening out larger particles by adopting a rotary vibrating screen to finally prepare powder;
s4, mixing materials, namely putting the powder material in the S3, 20 parts of sand, 50 parts of stones, 30 parts of high polymer and 10 parts of reinforcer into a stirrer, and adding water for mixing, wherein the rotating speed of the stirrer is 200r/min, so as to prepare concrete slurry;
s5, pouring, namely pouring the concrete slurry in the step S4 into a formwork of the pre-supported floor slab, and vibrating by adopting a vibrator while pouring;
s6, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S5 is solidified, spraying water for curing once every 2 hours, and taking down the cotton felt after 24 hours.
Furthermore, the modifier in the design is prepared by mixing 40% of calcium carbonate, 20% of modified talcum powder and 40% of methyl hydroxyethyl cellulose, and the enhancer is prepared by mixing 30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 20% of moisturizing lubricant, 30% of sodium dodecyl sulfate, 10% of sodium abietate and 20% of ethyl hydroxyethyl cellulose.
Furthermore, the polymer in the design is prepared by mixing two or more than two of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, wherein the mass ratio of the styrene-butadiene rubber is less than 50%.
The utility model provides a large-span floor, refers to fig. 2 to 6 and includes floor body 1, and floor body 1's bottom outer wall is provided with four stands 2, is provided with circle roof beam 3 between two adjacent stands 2, and floor body 1's bottom outer wall is provided with girder 8, is provided with auxiliary girder 7 between girder 8's both sides outer wall and the circle roof beam 3, and floor body 1's top outer wall is provided with and covers layer 4, and floor body 1's bottom outer wall is provided with down overburden 5.
Further, in the design, the floor slab body 1 includes a concrete layer 6, a reinforcing mesh 18 is arranged inside the concrete layer 6, a drain pipe 19 is arranged inside the reinforcing mesh 18, the reinforcing mesh 18 includes longitudinal ribs 11 which are uniformly distributed, and the bottoms of the longitudinal ribs 11 are tied and connected with the wave ribs 12 which are uniformly distributed through steel wires.
Further, in the design, a waterproof layer 15 is bonded on the outer wall of the top of the upper covering layer 4, and a wear-resistant layer 16 is arranged on the outer wall of the top of the waterproof layer 15.
Further, the bottom outer wall of the lower covering layer 5 in the present design is provided with a moisture-proof layer 20, and the bottom outer wall of the moisture-proof layer 20 is provided with a cured layer 17.
Further, the top of indulging muscle 11 and wave muscle 12 in this design has the last horizontal muscle 14 through the steel wire ligature, and the bottom of indulging muscle 11 and wave muscle 12 has lower horizontal muscle 13 through the steel wire ligature.
Further, in the design, the upper connecting pipe 9 is welded on the outer wall of the top of one of the water discharging pipes 19, and the lower connecting pipe 10 is welded on the outer wall of the bottom of one of the water discharging pipes 19.
Example two
The modified concrete comprises the following materials in parts by weight: 40 parts of limestone, 15 parts of clay, 30 parts of iron ore, 10 parts of coal cinder, 25 parts of gypsum, 20 parts of sand, 50 parts of stones, 35 parts of high polymer, 2 parts of modifier, 5 parts of enhancer and the balance of water.
Further, the modified concrete in the design is processed by the following steps:
s1, preparing raw materials, namely taking 40 parts of limestone, 15 parts of clay, 30 parts of iron ore and 10 parts of coal cinder, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials;
s2, calcining, namely preheating the raw material in the step S1 in a cyclone separator, then conveying the raw material into the rotary kiln through the cyclone separator, converting the raw material into clinker at 1450, and conveying the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling;
s3, grinding, namely adding 25 parts of gypsum and 10 parts of modifier into the clinker in the S2, putting the mixture into a ball mill for grinding, and screening out larger particles by adopting a rotary vibrating screen to finally prepare powder;
s4, mixing materials, namely putting the powder material in the S3, 20 parts of sand, 50 parts of stones, 30 parts of high polymer and 10 parts of reinforcer into a stirrer, and adding water for mixing, wherein the rotating speed of the stirrer is 200r/min, so as to prepare concrete slurry;
s5, pouring, namely pouring the concrete slurry in the step S4 into a formwork of the pre-supported floor slab, and vibrating by adopting a vibrator while pouring;
s6, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S5 is solidified, spraying water for curing once every 2 hours, and taking down the cotton felt after 24 hours.
Furthermore, the modifier in the design is prepared by mixing 40% of calcium carbonate, 20% of modified talcum powder and 40% of methyl hydroxyethyl cellulose, and the enhancer is prepared by mixing 30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 20% of moisturizing lubricant, 30% of sodium dodecyl sulfate, 10% of sodium abietate and 20% of ethyl hydroxyethyl cellulose.
Furthermore, the polymer in the design is prepared by mixing two or more than two of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, wherein the mass ratio of the styrene-butadiene rubber is less than 50 percent
EXAMPLE III
The modified concrete comprises the following materials in parts by weight: 40 parts of limestone, 15 parts of clay, 30 parts of iron ore, 10 parts of coal cinder, 25 parts of gypsum, 20 parts of sand, 50 parts of stones, 40 parts of high molecular polymer, 2 parts of modifying agent, 5 parts of reinforcing agent and the balance of water.
Further, the modified concrete in the design is processed by the following steps:
s1, preparing raw materials, namely taking 40 parts of limestone, 15 parts of clay, 30 parts of iron ore and 10 parts of coal cinder, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials;
s2, calcining, namely preheating the raw material in the step S1 in a cyclone separator, then conveying the raw material into the rotary kiln through the cyclone separator, converting the raw material into clinker at 1450, and conveying the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling;
s3, grinding, namely adding 25 parts of gypsum and 10 parts of modifying agent into the clinker in the S2, putting the mixture into a ball mill for grinding, and screening out larger particles by adopting a rotary vibrating screen to finally prepare powder, wherein the modifying agent is prepared by mixing 40% of double-flying powder, 20% of modified talcum powder and 40% of methyl hydroxyethyl cellulose;
s4, mixing materials, namely putting the powder in the S3, 20 parts of sand, 50 parts of stones, 30 parts of high molecular polymer and 10 parts of enhancer into a stirrer, adding water for mixing, wherein the rotating speed of the stirrer is 200r/min to prepare concrete slurry, the enhancer is formed by mixing 30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 20% of moisturizing lubricant, 30% of sodium dodecyl sulfate, 10% of sodium abietate and 20% of ethyl hydroxyethyl cellulose, the high molecular polymer is formed by mixing two or more of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, and the mass ratio of the styrene-butadiene rubber is less than 50%;
s5, pouring, namely pouring the concrete slurry in the step S4 into a formwork of the pre-supported floor slab, and vibrating by adopting a vibrator while pouring;
s6, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S5 is solidified, spraying water for curing once every 2 hours, and taking down the cotton felt after 24 hours.
In the above-mentioned first, second and third examples, the pressure test was performed on the concrete blocks under the same conditions except for the portions of the added high molecular polymer, so that the concrete blocks produced in the third example were the most resistant to the pressure, and thus the effect of the third example was the best.
In summary, the working principle of the invention is as follows: s1, preparing raw materials, namely taking 40 parts of limestone, 15 parts of clay, 30 parts of iron ore and 10 parts of coal cinder, respectively crushing the materials by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials; s2, calcining, namely preheating the raw material in the step S1 in a cyclone separator, then conveying the raw material into the rotary kiln through the cyclone separator, converting the raw material into clinker at 1450, and conveying the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling; s3, grinding, namely adding 25 parts of gypsum and 10 parts of modifying agent into the clinker in the S2, putting the mixture into a ball mill for grinding, and screening out larger particles by adopting a rotary vibrating screen to finally prepare powder, wherein the modifying agent is prepared by mixing 40% of double-flying powder, 20% of modified talcum powder and 40% of methyl hydroxyethyl cellulose; s4, mixing materials, namely putting the powder in the S3, 20 parts of sand, 50 parts of stones, 30 parts of high molecular polymer and 10 parts of enhancer into a stirrer, adding water for mixing, wherein the rotating speed of the stirrer is 200r/min to prepare concrete slurry, the enhancer is formed by mixing 30% of fatty alcohol-polyoxyethylene ether sodium sulfate, 20% of moisturizing lubricant, 30% of sodium dodecyl sulfate, 10% of sodium abietate and 20% of ethyl hydroxyethyl cellulose, the high molecular polymer is formed by mixing two or more of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, and the mass ratio of the styrene-butadiene rubber is less than 50%; s5, pouring, namely pouring the concrete slurry in the step S4 into a formwork of the pre-supported floor slab, and vibrating by adopting a vibrator while pouring; s6, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S5 is solidified, spraying water for curing once every 2 hours, and taking down the cotton felt after 24 hours.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (10)
1. A modified concrete is characterized in that: the paint comprises the following materials in parts by weight: 20-50 parts of limestone, 15-30 parts of clay, 30-40 parts of iron ore, 10-20 parts of coal cinder, 25-40 parts of gypsum, 20-40 parts of sand, 50-80 parts of pebble, 30-40 parts of high polymer, 2-6 parts of modifier, 5-8 parts of enhancer and the balance of water.
2. The modified concrete of claim 1, wherein: the modified concrete is processed by the following steps:
s, preparing raw materials, namely taking limestone-part, clay-part, iron ore-part and coal cinder-part, respectively crushing by using a crusher, and then ball-milling the crushed mixture by using a ball mill to prepare raw materials;
s, calcining, namely preheating the raw material in the S in a cyclone separator, then conveying the raw material into a rotary kiln through the cyclone separator, converting the raw material into clinker under the condition of-conversion, and feeding the clinker into a grate cooler from the rotary kiln for thermal regeneration and cooling;
s, grinding, namely adding gypsum and modifier into the clinker in the S, putting the mixture into a ball mill for grinding, and screening out larger particles by adopting a rotary vibration sieve to finally prepare powder;
s, mixing, namely putting the powder in the S, sand, gravel, high polymer and enhancer into a stirrer, and adding water for mixing, wherein the rotating speed of the stirrer is-r/min, so as to prepare concrete slurry;
s, pouring, namely pouring the concrete slurry in the S into a formwork of a pre-supported floor, and vibrating by adopting a vibrator while pouring;
and S, curing, namely covering and covering by using a cotton felt after the concrete slurry in the S is solidified, spraying water for curing once every-hour, and taking down the cotton felt after-hour.
3. The modified concrete of claim, wherein: the modifier is formed by mixing the components of calcium carbonate, sodium hydroxide, sodium lauryl sulfate, sodium abietate and ethyl hydroxyethyl cellulose.
4. The modified concrete of claim, wherein: the high molecular polymer is formed by mixing two or more than two of styrene-butadiene rubber, polyacrylate and ethylene vinyl acetate, wherein the mass ratio of the styrene-butadiene rubber is less than.
5. A large-span floor slab, its characterized in that: the floor slab comprises a floor slab body, the bottom outer wall of floor slab body is provided with four stands, adjacent two be provided with the collar tie beam between the stand, the bottom outer wall of floor slab body is provided with the girder, be provided with the auxiliary beam between the both sides outer wall of girder and the collar tie beam, the top outer wall of floor slab body is provided with and covers the layer, the bottom outer wall of floor slab body is provided with down the overburden.
6. A large span floor slab as claimed in claim, wherein: the floor slab body includes concrete layer, concrete layer's inside is provided with the reinforcing bar net, the inside of reinforcing bar net is provided with the drain pipe, the reinforcing bar net includes evenly distributed's the muscle of indulging, the bottom of indulging the muscle is tied up through the steel wire and is had evenly distributed's wave muscle.
7. A large span floor slab as claimed in claim, wherein: the waterproof layer is bonded to the outer wall of the top of the upper covering layer, and the wear-resistant layer is arranged on the outer wall of the top of the waterproof layer.
8. A large span floor slab as claimed in claim, wherein: the bottom outer wall of lower overburden is provided with the dampproof course, the bottom outer wall of dampproof course is provided with solidified layer.
9. A large span floor slab as claimed in claim, wherein: the top of the longitudinal bar and the top of the wave bar are connected with an upper transverse bar through steel wires in a binding mode, and the bottom of the longitudinal bar and the bottom of the wave bar are connected with a lower transverse bar through steel wires in a binding mode.
10. A large span floor slab as claimed in claim, wherein: the outer wall of the top of one of the water discharge pipes is welded with an upper connecting pipe, and the outer wall of the bottom of one of the water discharge pipes is welded with a lower connecting pipe.
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