CN107857542B - Production method of marine cement wind wave resistant mortar - Google Patents

Production method of marine cement wind wave resistant mortar Download PDF

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Publication number
CN107857542B
CN107857542B CN201711024722.0A CN201711024722A CN107857542B CN 107857542 B CN107857542 B CN 107857542B CN 201711024722 A CN201711024722 A CN 201711024722A CN 107857542 B CN107857542 B CN 107857542B
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cement
powder
marine
wave resistant
cellulose ether
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CN107857542A (en
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龙志谋
黄华青
李长平
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Guangxi Hengxian Hengfeng Building Material Co ltd
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Guangxi Hengxian Hengfeng Building Material Co ltd
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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
    • C04B28/06—Aluminous cements
    • 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
    • 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
    • C04B2111/2015—Sulfate resistance
    • 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
    • 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
    • C04B2111/24—Sea water resistance
    • 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
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a production method of marine cement wind wave resistant mortar, which comprises the following raw materials: limestone machine-made sand, quick-hardening sulphoaluminate cement, superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a water reducing agent and slag powder; the marine cement wind wave resistant mortar disclosed by the invention has the advantages of low alkalinity, acid and alkali resistance, early strength, quick hardening, continuous increase of later strength, contribution to improvement of safety and durability of reinforced concrete, strong wind wave resistant capability and suitability for marine engineering construction of ports, sea ponds, coastal protection, sea-crossing bridges, marine gas stations and the like.

Description

Production method of marine cement wind wave resistant mortar
Technical Field
The invention relates to the technical field of building materials, in particular to a production method of marine cement wind wave resistant mortar.
Background
Since the last half of the 20 th century, the world population and economy have expanded rapidly, the demand for protein and energy has also increased dramatically, and offshore engineering suitable for the same has become one of the most rapidly developed projects in the last 30 years as the development of oil and natural gas in continental shelf sea areas and the development and space utilization scale of marine resources have continued to expand.
The existing marine cement used in marine engineering construction is subject to continuous scouring of seawater, and the seawater rich in chloride ions and sulfate can easily erode the marine engineering constructed by the marine cement. According to the particularity of the technical indexes of the marine cement, the requirement on the diffusion coefficient of chloride ions and the corrosion coefficient of sulfate is mainly met, and the requirement on the corrosion of the chloride ions becomes the key of the technology particularly when the marine cement is applied to ocean engineering. The existing marine cement has low strength, and also has lower resistance to chloride ion corrosion and sulfate corrosion.
In recent years, various users have higher and higher requirements on the quality of ocean engineering materials and larger monomer engineering quantity, and not only the building engineering taking concrete as a base material is required to have higher durability against the impact of large wind waves, but also various requirements on other properties, such as hydration heat, crack resistance and the like, are also provided. Therefore, from the viewpoint of raw material production, as well as from the viewpoint of design and construction, the preparation of a special mortar suitable for ocean engineering and other engineering requiring corrosion resistance is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a production method of marine cement wind wave resistant mortar, which has the advantages of low alkalinity, acid and alkali resistance, early strength, quick hardening, continuous increase of later strength, contribution to improvement of the safety and durability of reinforced concrete, strong wind wave resistance and capability of overcoming the defects of the prior art in the aspects of impermeability and corrosion resistance.
The production method of the marine cement wind wave resistant mortar comprises the following raw materials in parts by weight:
40-60 parts of limestone machine-made sand;
30-45 parts of quick-hardening sulphoaluminate cement;
1-10 parts of superfine silicon powder;
2-4 parts of a composite coupling agent;
0.3-0.5 part of dispersible latex powder;
0.1-0.4 part of cellulose ether;
0.02-0.05 part of starch ether;
0.05-0.2 part of water reducing agent;
5-10 parts of slag powder;
the limestone machine-made sand has the grain size of fine sand below 1.18mm and the specification of 0.6 mm-1.18 mm;
the strength grade of the rapid hardening sulphoaluminate cement is 52.5, the rapid hardening sulphoaluminate cement consists of 10-15 wt% of iron furnace waste slag and sulphoaluminate clinker,
mineral composition and chemical composition weight content (%) of the sulfoaluminate clinker:
C2S C4A3S C4AF SiO2 Al2O3 Fe2O3 CaO MgO SO3
A 18.02 60.45 17.36 6.28 34.03 5.71 40.19 1.18 9.46
B 19.06 57.29 16.66 5.99 32.30 5.48 41.14 1.49 9.68
anhydrous calcium sulfoaluminate (C)4A3S) 46-55%, dicalcium silicate (C)2S) 18-23%, tetracalcium aluminoferrite (C)4AF)16 to 22%, R in the chemical composition2Na+0.658K20) ≤0.65%；
The granularity of the superfine silicon powder is 500-2000 meshes;
the composite coupling agent is compounded by a phthalate ester coupling agent and epoxy silane, wherein the weight ratio of the phthalate ester to the epoxy silane is 1: 2;
the dispersible latex powder is acrylic acid rubber powder;
the cellulose ether is one or a mixture of several of cellulose ethers such as methyl cellulose ether, hydroxyethyl cellulose ether, hydroxypropyl methyl cellulose ether, hydroxyethyl methyl cellulose ether and the like, and the viscosity is less than 10000;
the starch ether is modified from potatoes, corns, cassava and the like;
the water reducing agent is a polycarboxylate water reducing agent;
the specific surface area of the slag powder is 1000-2000 m2Per kg, the average particle diameter is less than or equal to 2 μm.
The production method of the marine cement wind wave resistant mortar comprises the following steps:
firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed.
Compared with the prior art, the invention has the prominent substantive characteristics and remarkable progress that:
1. limestone machine-made sand
With the increasing trend of the shortage of natural sand, the technology of replacing river sand with limestone machine-made sand is actively developed, and the technology is popularized and applied in production practice, which becomes the trend of the building industry. At present, with the development of the building market, people know the machine-made sand well, and the defects of the machine-made sand are improved by various technical means, so that the advantages and the disadvantages are improved, and the prospect of the limestone machine-made sand is very wide. The fact proves that the limestone machine-made sand which has good gradation and meets the related technical indexes can completely meet the performance requirement of the mortar, and the limestone machine-made sand has good effect in practice, thereby reducing the production cost and creating economic benefit while ensuring the quality.
2. Quick hardening sulphoaluminate cement
The quick hardening sulphoaluminate cement not only has higher early strength, but also has ever-increasing later strength. And simultaneously has the coagulation time meeting the use requirement. With the increase of the maintenance age, the strength is not goodThe growth is interrupted. Has excellent frost resistance, compact structure of set cement, good durability, and resistance to seawater and chloride (NaCl, MgCl)2) Sulfate (Na)2SO4、MgSO4、(NH4)2SO4) In particular their complex salts (MgSO)4NaCl), etc., all have excellent corrosion resistance. The permeability resistance and seawater corrosion resistance are greatly superior to those of portland cement, and the cement is suitable for marine construction engineering.
3. Superfine silicon powder
The superfine silica powder can fill the pores among cement particles, and simultaneously generates gel with hydration products and reacts with alkaline material magnesium oxide to generate gel. The cement-based mortar is doped with a proper amount of silica fume, and can play the following roles:
the compression resistance, the folding resistance, the seepage resistance, the corrosion resistance, the impact resistance and the wear resistance are obviously improved; has the functions of water retention, segregation prevention, bleeding prevention and great reduction of the pumping resistance of the mortar; the service life of the mortar is remarkably prolonged, and particularly under severe environments such as chloride pollution corrosion, sulfate corrosion, high humidity and the like, the durability of the mortar can be improved by one time or even several times; the falling ash of the sprayed mortar is greatly reduced, and the thickness of a single sprayed layer is improved; is a necessary component of the high-strength mortar; the cement mortar has the effect of about 5 times that of cement, can reduce the cost and improve the durability when being applied to common mortar; effectively preventing the mortar alkali aggregate reaction; the compactness of the casting refractory material is improved.
4. Composite coupling agent
The composite coupling agent is compounded by phthalate ester and epoxy silane, and acid radicals are generated after cement hydration: silicate, aluminate, sulphoaluminate or ferroaluminate, the active groups of which are combined with acid radicals generated after hydration of cement to form cross-linking, so that the building material is firmly bonded with cement slurry, the bonding effect is very firm and is less influenced by the use environment factors, therefore, the building material can be bonded on a base surface in a long-lasting way and forms a full bonding structure with the base surface, the cement slurry and water are subjected to hydration reaction, and the generated hydration products are gathered on the surface of cement particles to form a coagulated film. The surface of the gel film type cement slurry forms plastic gel film type cement slurry, so that the gel film type cement slurry has good fluidity, the defect of microscopically uneven interface layer can be filled, and microscopically complete wetting is formed between the building material and the cement slurry through extrusion. The composite coupling agent designed by the invention is like a bridge, namely the composite coupling agent can hook latex, and active groups of the composite coupling agent can be combined with acid radicals generated after cement hydration to form crosslinking, so that the building material is firmly bonded with cement slurry. So the mechanism of the two is completely different.
5. Acrylic acid rubber powder
Compared with the common EVA adhesive powder, the acrylic acid adhesive powder has excellent water resistance and aging resistance, and can ensure that the obtained mortar has good bonding strength and aging resistance, and the acrylic acid adhesive powder can form a continuous film layer in the mortar after the mortar is cured by optimizing the addition amount of the acrylic acid adhesive powder, and the compact waterproof layer has excellent durability and waterproof and anti-permeability performance by matching with other fillers and quartz sand. The bonding strength of the substrate is obviously improved, and the water absorption of the mortar is reduced; the drawing strength and the abrasion resistance are improved, the drying shrinkage is reduced, the cracking is inhibited, and the bonding strength is obviously improved after repeated cold and hot actions.
The mortar has outstanding waterproof performance and good bonding strength, increases the elasticity of the mortar, has longer opening time, gives the mortar excellent alkali resistance, improves the adhesiveness/adhesiveness, the breaking strength, the plasticity, the wear resistance and the constructability of the mortar, and has stronger flexibility in flexible anti-crack mortar.
6. Cellulose ethers
In the ready-mixed mortar, the important function of cellulose ether in the mortar mainly has three aspects, namely excellent water retention capacity, influence on the consistency and thixotropy of the mortar and interaction with cement. The water retention of cellulose ethers depends on the water absorption of the base, the mortar composition, the mortar layer thickness, the mortar water demand, and the setting time of the setting material. The water retention of the cellulose ether itself results from the solubility and dehydration of the cellulose ether itself. It is known that cellulose molecular chains contain a large amount of OH groups having a strong hydration property, but are not soluble in water by themselves because the cellulose structure has a high degree of crystallinity. The hydration ability of hydroxyl groups alone is not sufficient to pay for strong hydrogen bonding and van der waals forces between molecules. Therefore, the polymer only swells and does not dissolve in water, when a substituent is introduced into a molecular chain, not only hydrogen chains are destroyed by the substituent, but also hydrogen bonds between chains are destroyed due to wedging of the substituent between adjacent chains, and the larger the substituent is, the larger the intermolecular distance is. The larger the effect of destroying hydrogen bonds is, the solution enters after the cellulose crystal lattice is expanded, and the cellulose ether becomes water-soluble to form a high-viscosity solution. When the temperature is increased, the polymer hydration is reduced and interchain water is driven out. When the dehydration is sufficient, the molecules begin to aggregate, forming a three-dimensional network structure gel which folds out. The good water retention capacity makes the cement hydrated more completely, can improve the wet viscosity of wet mortar, improve the bonding strength of the mortar, and can adjust the time.
The cellulose ether is used as a stabilizer in the mortar, so that the water retention is increased, the bonding property is improved, the water loss property is reduced, the water absorption by the porous material is delayed, the cement hydration is facilitated, and the opening time is prolonged. Under the combined action of water retention and fluidity, the adhesive force and strength of the mortar are promoted, so that the delamination and skin formation are prevented and a uniform and consistent plastic body is obtained. And the texture among the particles becomes smoother, so that the mortar is more smoothly sluiced, and the workability is improved, thereby obtaining better construction performance.
7. Starch ethers
The starch ether is suitable for various (cement, gypsum and calcium-lime-based) inner and outer wall putty and various facing mortar plastering mortar. Can be used as an additive for cement-based products, gypsum-based products and lime-calcium products. The starch ether has good compatibility with other buildings and additives; it is especially suitable for building dry mixture such as mortar, adhesive, plastering and rolling material. The starch ether and the methyl cellulose ether are jointly used in the dry building mixture, so that higher thickening property, stronger structural property, sag resistance and easy operability can be endowed. The viscosity of mortars, adhesives, renders and trowels comprising higher methyl cellulose ethers can be reduced by the addition of starch ethers.
8. Polycarboxylate water reducing agent
The polycarboxylate water reducing agent is a typical comb-shaped molecular structure, forms a more efficient three-dimensional dispersion system, and has the advantages of small mixing amount, high water reducing rate, good cement adaptability, excellent slump retention performance, low chloride ion content and alkali content, small shrinkage, good durability and the like in the production and use processes, and is environment-friendly.
9. Slag powder
In modern concrete technology, mineral admixtures which are subjected to certain quality control become one of indispensable components of high-performance concrete, and the application and preparation of the mineral admixtures are involved in various aspects of scientific research of cement-based materials. Slag powder as a fine powder is already significantly different from slag of ordinary fineness used in the past. Since the powder particles are sufficiently refined, the surface energy thereof is significantly increased, and the resulting surface effect imparts new properties to cement and concrete, while also improving the strength and various durability of concrete. Slag powder is equivalently used for replacing part of cement clinker in the concrete, and the surface physicochemical action is obvious; the influence on the fluidity mainly depends on the surface water absorption of the powder, when the high-efficiency water reducing agent is mixed with the slag powder, the slag powder can strongly adsorb the high-efficiency water reducing agent, the high-efficiency water reducing agent has a dispersing effect on cement and concrete, the fluidity of slurry can be obviously increased, the yield stress and the viscosity value of the slurry can be reduced, and the high-efficiency water reducing agent is suitable for preparing concrete with low water-cement ratio and high fluidity. The slag powder is mixed into the concrete, so that the strength and the compactness of the concrete are obviously improved, the water absorption rate and the chloride ion diffusion system of the concrete are correspondingly reduced, and the impermeability and the chemical corrosion resistance to seawater, acid and sulfate of the concrete are improved. In addition, the replacement of cement by reasonable amount of slag powder can reduce the early heat release rate of cement hydration in concrete, inhibit the temperature rise of concrete and reduce the early temperature tensile stress of mass concrete. The high-performance concrete doped with the slag powder is used as a high-quality structural building material, is widely applied to hydraulic engineering and marine engineering of large-volume concrete, high-strength and large-span bridges and high-rise buildings, and plays a positive role in the economic construction of China.
10. The marine cement mortar product has low alkalinity, acid and alkali resistance, early strength, quick hardening, continuously increased later strength, high wind wave resistance and high safety and durability, and is suitable for marine engineering construction of ports, sea ponds, coast protection, sea-crossing bridges, marine gas stations and the like.
11. The slurry structure prepared by adopting the marine cement mortar has good compactness and volume stability; the concrete has improved impermeability and frost resistance, has high chloride ion diffusion resistance and sulfate erosion resistance, meets the requirements of ocean engineering construction, solves the problems of strong destructiveness such as building damage, short service life and the like after being eroded by salts such as k & cl & the like in seawater and washed by seawater in ocean engineering, and overcomes the defects of low early hydration speed, low strength and Ca (OH) after hydration of Portland cement2The high content thereof causes the disadvantages in the aspects of anti-permeability and anti-corrosion.
12. The maritime work cement mortar has the advantages that under the combined action of the polycarboxylate water reducing agent and the superfine silicon powder, the bleeding rate of fresh concrete is small, the viscosity of slurry is high, the wrapping and supporting effects of the slurry on aggregate are strong, the sinking phenomenon of the coarse aggregate is greatly reduced, the fresh concrete is enabled to keep good uniformity in the construction process, and the mechanical properties after hardening are balanced.
13. The marine engineering cement has the advantages of simple and convenient construction and use operation, easy quality control and better economic and social benefits.
Detailed Description
The described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The production method of the marine cement wind wave resistant mortar comprises the following raw materials in parts by weight: 25 parts of limestone machine-made sand, 10 parts of quick-hardening sulphoaluminate cement, 1 part of superfine silicon powder, 2 parts of a composite coupling agent, 0.3 part of acrylic acid rubber powder, 0.1 part of methyl cellulose ether, 0.02 part of potato starch ether, 0.05 part of a polycarboxylate water reducing agent and 5 parts of slag powder.
The production method of the marine cement wind wave resistant mortar comprises the following steps:
firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed.
Example 2
The production method of the marine cement wind wave resistant mortar comprises the following raw materials in parts by weight: 30 parts of limestone machine-made sand, 15 parts of quick-hardening sulphoaluminate cement, 4 parts of superfine silicon powder, 3 parts of a composite coupling agent, 0.4 part of acrylic rubber powder, 0.2 part of hydroxyethyl cellulose ether, 0.03 part of corn starch ether, 0.1 part of a polycarboxylate water reducing agent and 7 parts of slag powder.
Firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed.
Example 3
The production method of the marine cement wind wave resistant mortar comprises the following raw materials in parts by weight: 35 parts of limestone machine-made sand, 20 parts of quick-hardening sulphoaluminate cement, 8 parts of superfine silicon powder, 4 parts of a composite coupling agent, 0.5 part of acrylic acid rubber powder, 0.3 part of hydroxypropyl methyl cellulose ether, 0.04 part of cassava starch ether, 0.15 part of a polycarboxylate water reducing agent and 9 parts of slag powder.
Firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed.
Example 4
The production method of the marine cement wind wave resistant mortar comprises the following raw materials in parts by weight: 40 parts of limestone machine-made sand, 25 parts of rapid-hardening sulphoaluminate cement, 10 parts of superfine silicon powder, 4 parts of composite coupling agent, 0.5 part of acrylic acid rubber powder, 0.4 part of hydroxyethyl methyl cellulose, 0.05 part of cassava starch ether, 0.2 part of polycarboxylate water reducing agent and 10 parts of slag powder.
Firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed.
Repeated experiments by the inventor show that the detection data of the marine cement wind wave resistant mortar are as follows:
Figure DEST_PATH_IMAGE002

Claims (6)

1. the production method of the marine cement wind wave resistant mortar is characterized by comprising the following raw materials in parts by weight:
40-60 parts of limestone machine-made sand;
30-45 parts of quick-hardening sulphoaluminate cement;
1-10 parts of superfine silicon powder;
2-4 parts of a composite coupling agent;
0.3-0.5 part of dispersible latex powder;
0.1-0.4 part of cellulose ether;
0.02-0.05 part of starch ether;
0.05-0.2 part of water reducing agent;
5-10 parts of slag powder;
the production method of the marine cement wind wave resistant mortar comprises the following steps:
firstly, taking limestone machine-made sand and high-strength superfine quick-hardening sulphoaluminate cement as cementing materials and aggregates, putting the materials into a mill for mixing and grinding, and using a 0.08mm water sieve to control the fineness of the mill to be 20 +/-2%;
the ground powder is mixed with superfine silicon powder, a composite coupling agent, dispersible latex powder, cellulose ether, starch ether, a powdery polycarboxylate superplasticizer and slag powder and is formed by uniformly mixing at a high speed;
the limestone machine-made sand has the grain size of fine sand below 1.18mm and the specification of 0.6 mm-1.18 mm; the strength grade of the quick-hardening sulphoaluminate cement is 52.5, and the quick-hardening sulphoaluminate cement consists of 10-15 wt% of iron furnace waste residues and sulphoaluminate clinker; the granularity of the superfine silicon powder is 500-2000 meshes; the composite coupling agent is compounded by a phthalate ester coupling agent and epoxy silane, and the weight ratio of the phthalate ester to the epoxy silane is 1: 2.
2. The method for producing marine cement wind and wave resistant mortar according to claim 1, wherein the dispersible latex powder is acrylic acid rubber powder.
3. The method for producing marine cement wind and wave resistant mortar according to claim 1, wherein the cellulose ether is one or a mixture of methyl cellulose ether, hydroxyethyl cellulose ether, hydroxypropyl methyl cellulose ether and hydroxyethyl methyl cellulose ether, and the viscosity is less than 10000.
4. The method for producing marine cement wind and wave resistant mortar according to claim 1, wherein the starch ether is modified from potato, corn and tapioca.
5. The method for producing marine cement wind and wave resistant mortar according to claim 1, wherein the water reducing agent is a polycarboxylate water reducing agent.
6. The method for producing marine cement wind and wave resistant mortar according to claim 1, wherein the slag powder has a specific surface area of 1000-2000 m2Per kg, the average particle diameter is less than or equal to 2 μm.
CN201711024722.0A 2017-10-27 2017-10-27 Production method of marine cement wind wave resistant mortar Expired - Fee Related CN107857542B (en)

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CN110529668A (en) * 2019-08-28 2019-12-03 福州森百德机电科技有限公司 Cementitious composite pipe and preparation method thereof
CN110698149A (en) * 2019-11-14 2020-01-17 广西云燕特种水泥建材有限公司 High-corrosion-resistance marine cement cementing material and preparation method thereof
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