CN101717215B - Concrete aggregate produced by desert fine sands and production method thereof - Google Patents
Concrete aggregate produced by desert fine sands and production method thereof Download PDFInfo
- Publication number
- CN101717215B CN101717215B CN2009102281634A CN200910228163A CN101717215B CN 101717215 B CN101717215 B CN 101717215B CN 2009102281634 A CN2009102281634 A CN 2009102281634A CN 200910228163 A CN200910228163 A CN 200910228163A CN 101717215 B CN101717215 B CN 101717215B
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- China
- Prior art keywords
- sand
- sands
- mortar
- aggregate
- utilize
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Classifications
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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
- C04B28/001—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 unburned clay
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention relates to a concrete aggregate produced by desert fine sands and a production method thereof. The method comprises the steps of: selecting the sands which are larger than 0.6mm from desert fine sands with a sand-selecting device; matching the selected sands with proper amount of raw sands to obtain final sands with reasonable gradation; mixing the final sands, proper amount of swell soil or red soil, sodium hydroxide or pure alkali with water to obtained mixed mortar; preparing the mortar to be blocky or cylindrical with a shaping machine; drying; filling the mortar into a rotary kiln or a vertical rotary kiln to calcine by means of high temperature; and crushing the calcined sands with a stone crusher to obtain the aggregate for preparing cement concrete with the compressive strength of 20-50MPa. The weight ratio of each raw material is as follows: swell soil or red soil: sands: sodium carbonate or sodium hydroxide: water=1:4-20:0.1-0.15:0.5-1.5; and the compressive strength is 20-50 MPa. The invention has simple preparation process, can make full use of the sands resources of the desert, greatly reduces the transport cost, and selects different water material proportions to prepare the concrete aggregate with different intensity requirements.
Description
Technical field
The present invention relates to material of construction, particularly a kind of aggregate and manufacture method thereof of utilizing desert fine sands to make.
Background technology
Stone is concrete main composition material, all is usually to obtain by pulverizing natural rock.In recent years, China has undertaken the construction of engineerings such as a large amount of buildings, traffic and oil-field development in zone, African desert, because the zone, desert does not have natural rock, the used stone of concrete has to transport from the outside.The desert transportation is difficulty very, and construction costs is increased substantially.
Summary of the invention
The object of the present invention is to provide a kind of aggregate and manufacture method thereof of utilizing desert fine sands to make.Utilize desert fine sands by broken five processes of sand screening, the adjustment of sand grating, the manufacturing of mortar piece, calcining and mortar piece, produce aggregate, building cost is reduced greatly, thereby have huge economic benefit prospect.
The aggregate that utilizes desert fine sands to make provided by the invention is to utilize to select husky machine, selects in the desert fine sands greater than the sand of 0.6mm, more selected sand is cooperated with an amount of former sand, obtains the rational finished product sand of grating; Husky and an amount of wilkinite of finished product or laterite, caustic soda (yellow soda ash) or soda ash (sodium hydroxide) and water mixed obtaining mixed mortar, utilize shaper that mortar is made bulk or cylindric; After treating that it is dried to a certain degree, pack into rotary kiln or shaft kiln are calcined, and with the mortar piece stone crusher in crushing after the calcining, obtain being used to prepare the aggregate of cement concrete.
Wherein the mass ratio of each component raw material is: wilkinite or laterite: sand: yellow soda ash or sodium hydroxide: water equals 1: 4～and 20: 0.1～0.15: 0.5～1.5; The aggregate ultimate compression strength 20～50MPa that utilizes desert fine sands to make provided by the invention.
The concrete manufacture method of the aggregate that desert fine sands makes of utilizing provided by the invention may further comprise the steps:
(1) sand screening: utilize and select husky machine, isolate the coarse sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: with selected coarse sand and an amount of former husky mixing preparation, obtain the rational engineering of grain composition with husky;
(3) the mortar piece is made: utilize shaper, engineering is made bulk or right cylinder with the mortar that sand, wilkinite or laterite, yellow soda ash or sodium hydroxide and water mix after stirring.
(4) mortar piece calcining: the water content for the treatment of the mortar piece is less than after 5%, and its pack into shaft kiln or rotary kiln are calcined, and the control calcining temperature is 1150 ℃～1250 ℃, and constant temperature 1～2 hour, and kiln discharge is cooled to normal temperature then, promptly obtains the burnt sand lumps.
(5) mortar piece fragmentation: utilize the stone crusher with the fragmentation of burnt sand lumps, obtain the aggregate finished product of different-grain diameter.
The invention has the advantages that the artificial stones manufacturing processed is simple, can make full use of the husky resource in desert, reduce trucking costs greatly, select different water material mixture ratios, can make the aggregate of varying strength requirement.
Embodiment
Embodiment 1
(1) sand screening: get the Sahara Desert fine sand, with selecting husky machine (commercially available) therefrom to sieve out the rough sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: selected rough sand and an amount of former sand are pressed 6: 4 mixing preparations, obtain test with husky;
(3) the mortar piece is made: by wilkinite: test is with sand: yellow soda ash: the mass ratio of water equals 1: 19: 0.1: 1.0 prepare mortar 2kg; Use shaper (QTH8-15, Yangzhou Hongchan Tech company limited), utilize the right cylinder mortar piece of steel die trial moulding Φ 40mm * 30mm;
(4) mortar piece calcining: the water content for the treatment of right cylinder mortar piece is calcined its retort furnace of packing into less than after 5%, and the control calcining temperature is 1200 ℃, and constant temperature 1 hour, and coming out of the stove then is cooled to normal temperature, and promptly obtaining ultimate compression strength is the product that burn till of 30MPa.
(5) mortar piece fragmentation: broken burning till product, obtain the aggregate finished product.
Embodiment 2
(1) sand screening: get the Sahara Desert fine sand, therefrom sieve out the rough sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: selected rough sand and an amount of former sand are pressed 6: 4 mixing preparations, obtain test with husky;
(3) the mortar piece is made: by wilkinite: test is with sand: yellow soda ash: the mass ratio of water equals 1: 11.5: 0.15: 1.0 prepare mortar 2kg; Utilize the right cylinder mortar piece of steel die trial moulding Φ 40mm * 30mm;
(4) mortar piece calcining: the water content for the treatment of right cylinder mortar piece is calcined its retort furnace of packing into less than after 5%, and the control calcining temperature is 1250 ℃, and constant temperature 1 hour, and coming out of the stove then is cooled to normal temperature, and promptly obtaining ultimate compression strength is the product that burn till of 35MPa.
(5) mortar piece fragmentation: broken burning till product, obtain the aggregate finished product.
Embodiment 3
(1) sand screening: get the Sahara Desert fine sand, therefrom sieve out the rough sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: selected rough sand and an amount of former sand are pressed 6: 4 mixing preparations, obtain test with husky;
(3) the mortar piece is made: by wilkinite: test is with sand: yellow soda ash: the mass ratio of water equals 1: 9: 0.1: 1.0 prepare mortar 2kg; Utilize the right cylinder mortar piece of steel die trial moulding Φ 40mm * 30mm.
(4) mortar piece calcining: the water content for the treatment of right cylinder mortar piece is calcined its retort furnace of packing into less than after 5%, and the control calcining temperature is 1200 ℃, and constant temperature 1 hour, and coming out of the stove then is cooled to normal temperature, and promptly obtaining ultimate compression strength is the product that burn till of 40MPa.
(5) mortar piece fragmentation: broken burning till product, obtain the aggregate finished product.
Embodiment 4
(1) sand screening: get the Sahara Desert fine sand, therefrom sieve out the rough sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: selected rough sand and an amount of former sand are pressed 6: 4 mixing preparations, obtain test with husky;
(3) the mortar piece is made: by wilkinite: test is with sand: yellow soda ash: the mass ratio of water equals 1: 5.7: 0.1: 1.0 prepare mortar 2kg; Utilize the right cylinder mortar piece of steel die trial moulding Φ 40mm * 30mm;
(4) mortar piece calcining: the water content for the treatment of right cylinder mortar piece is calcined its retort furnace of packing into less than after 5%, and the control calcining temperature is 1250 ℃, and constant temperature 1 hour, and coming out of the stove then is cooled to normal temperature, and promptly obtaining ultimate compression strength is the product that burn till of 50MPa.
(5) mortar piece fragmentation: broken burning till product, obtain the aggregate finished product.
Embodiment 5
(1) sand screening: get the Sahara Desert fine sand, therefrom sieve out the rough sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: selected rough sand and an amount of former sand are pressed 6: 4 mixing preparations, obtain test with husky;
(3) the mortar piece is made: by wilkinite: test is with sand: yellow soda ash: the mass ratio of water equals 1: 5.7: 0.15: 1.0 prepare mortar 2kg; Utilize the right cylinder mortar piece of steel die trial moulding Φ 40mm * 30mm;
(4) mortar piece calcining: the water content for the treatment of right cylinder mortar piece is calcined its retort furnace of packing into less than after 5%, and the control calcining temperature is 1200 ℃, and constant temperature 1 hour, and coming out of the stove then is cooled to normal temperature, and promptly obtaining ultimate compression strength is the product that burn till of 50MPa.
(5) mortar piece fragmentation: broken burning till product, obtain the aggregate finished product.
Claims (5)
1. aggregate that utilizes desert fine sands to make is characterized in that: it is to utilize to select husky machine, selects in the desert fine sands greater than the sand of 0.6mm, more selected sand is cooperated with an amount of former sand, obtains the rational finished product sand of grating; The husky mixing with wilkinite or laterite, caustic soda or soda ash and water in right amount of finished product obtained mixed mortar, it is block or cylindric to utilize shaper that mortar is made, dry, pack into rotary kiln or shaft kiln carries out high-temperature calcination, with the mortar piece stone crusher in crushing after the calcining, obtain being used to prepare the aggregate of cement concrete; Wherein the mass ratio of each component raw material is: wilkinite or laterite: sand: yellow soda ash or sodium hydroxide: water=1: 4～20: 0.1～0.15: 0.5～1.5.
2. according to the described aggregate of claim 1, the ultimate compression strength that it is characterized in that it is 20～50MPa.
3. the manufacture method of the described aggregate of claim 1 is characterized in that it may further comprise the steps:
(1) sand screening: utilize and select husky machine, isolate the coarse sand of particle diameter greater than 0.6mm;
(2) the sand grains grating is adjusted: with selected coarse sand and an amount of former husky mixing preparation, obtain the rational engineering of grain composition with husky;
(3) the mortar piece is made: utilize shaper, engineering is made bulk or right cylinder with the mortar that sand, wilkinite or laterite, yellow soda ash or sodium hydroxide and water mix after stirring;
(4) mortar piece calcining: the water content for the treatment of the mortar piece is less than after 5%, and its pack into shaft kiln or rotary kiln are carried out high-temperature calcination, and constant temperature 1～2 hour, and kiln discharge is cooled to normal temperature then, promptly obtains the burnt sand lumps;
(5) mortar piece fragmentation: utilize the stone crusher with the fragmentation of burnt sand lumps, obtain the aggregate finished product of different-grain diameter.
4. the manufacture method of aggregate according to claim 3 is characterized in that described mortar piece is of a size of 40mm * 30mm.
5. the manufacture method of aggregate according to claim 3 is characterized in that described high-temperature calcination temperature is 1150 ℃～1250 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102281634A CN101717215B (en) | 2009-11-11 | 2009-11-11 | Concrete aggregate produced by desert fine sands and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102281634A CN101717215B (en) | 2009-11-11 | 2009-11-11 | Concrete aggregate produced by desert fine sands and production method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101717215A CN101717215A (en) | 2010-06-02 |
| CN101717215B true CN101717215B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102281634A Expired - Fee Related CN101717215B (en) | 2009-11-11 | 2009-11-11 | Concrete aggregate produced by desert fine sands and production method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017102225B3 (en) * | 2016-04-11 | 2017-09-07 | Khd Humboldt Wedag Gmbh | Use of treated desert sand as aggregate for concrete, process for its production and desert sand as aggregate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263061A (en) * | 1999-02-04 | 2000-08-16 | 新岛物产株式会社 | Production method of light aggregate for high-strength concrete |
| CN1559956A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Regenerative bone material by concrete and preparing method thereof |
-
2009
- 2009-11-11 CN CN2009102281634A patent/CN101717215B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263061A (en) * | 1999-02-04 | 2000-08-16 | 新岛物产株式会社 | Production method of light aggregate for high-strength concrete |
| CN1559956A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Regenerative bone material by concrete and preparing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 阮光华.我国混凝土骨料加工技术的进展.《水电施工机械化》.2009,第58-63页. * |
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| CN101717215A (en) | 2010-06-02 |
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Granted publication date: 20111109 Termination date: 20201111 |