CN103265258A - Dry powder mortar prepared from industrial residues - Google Patents
Dry powder mortar prepared from industrial residues Download PDFInfo
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- CN103265258A CN103265258A CN2013102225490A CN201310222549A CN103265258A CN 103265258 A CN103265258 A CN 103265258A CN 2013102225490 A CN2013102225490 A CN 2013102225490A CN 201310222549 A CN201310222549 A CN 201310222549A CN 103265258 A CN103265258 A CN 103265258A
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Abstract
The invention provides dry powder mortar prepared from industrial residues. The dry powder mortar is prepared from the following raw materials in percentage by mass: 25-40% of fly ash, 10-30% of steel slag powder, 5-15% of cement, 2-10% of gypsum, 10-20% of quartz sand and 13-20% of a water reducing agent. The dry powder mortar with good performance is obtained by reasonably preparing the raw materials and enhancing advantages and avoiding disadvantages according to a closest packing principle and the particle distribution conditions of the raw materials. The dry powder mortar is high in tensile strength, strong in cohesive force and low in cost with less possibility of dry shrinkage and cracking, and a lot of industrial wastes are used, so that the product cost is reduced and the wastes can be changed into treasure; and the dry powder mortar can be applied to general building constructions, airport runways, express highways, surface layer pavements of bridges, and concrete bases or cushion layer between supporting layers of railways.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of dry-mix that utilizes the industrial residue preparation.
Background technology
Along with the raising of people's living standard, also more and more higher to the requirement of construction quality.Owing to be subjected to the influence of various raw material qualities such as workmen's skills involved in the labour and cement, sand, the mortar of working-yard configuration, no matter be masonry mortar, plastering mortar, or floor leveling mortar, buildings motar cracking phenomena (also Large Area Cracking can occur even if the most traditional clay brick wall uses sand-cement slurry to plaster) usually appears, thereby cause construction quality instability, intensity not to reach to require even bum situation happens occasionally, become the construction quality common fault.In addition, along with growth in the living standard, people also increase severely with day to the requirement of self living environment, in the construction process in house, have taked insulation, heat insulation and quiet measure, have increased one deck thermofin on the main construction surface.The material that begins most is the styrofoam thermofin, after have heat-insulation mortar bedly, its principle all is that some small bubbles of vacuum form the very thin films of one deck and reached insulation, heat insulation and quiet effect.But the high-temperature resistant result extreme difference of styrofoam wherein, flameproof effect is undesirable, once causes the fiery residence on ground such as Shanghai, Shenyang, and country has forbidden the use of styrofoam by force.And inorganic kervit microbead insulated sand slurry compares safety comparatively speaking owing to forming with incombustible inorganic materials, but its cost height can cause the overall cost of engineering to rise.Seek that a kind of fragility is low, tensile strength is big, heat preservation energy-saving and the low mortar of cost are the research focus in the building material industry always.
Summary of the invention
The objective of the invention is to the problem that exists at prior art, provide that a kind of tensile strength is big, cost is low and the dry-mix that utilizes the industrial residue preparation of heat preservation energy-saving.
For this reason, the present invention adopts following technical scheme:
A kind of dry-mix that utilizes the industrial residue preparation, by mixing by following mass percent proportion raw material:
Flyash 25-40%, steel-making slag powder 10-30%, cement 5-15%, gypsum 2-10%, quartz sand 10-20%, water reducer 13-20%.
Further, the particle diameter of described quartz sand is 2-5mm.
Further, described gypsum is desulfurated plaster.
Further, described water reducer is polycarboxylate water-reducer.
In the raw material of the present invention, flyash is as a kind of industrial waste, aboundresources, cheap, and contain a large amount of glass beads.Glass bead has the spot contact bearing effect, can reduce the frictional force between the cement granules, improves concrete flowability, and its specific surface area is big, the surface energy height, and the ability of planar water is little; Glass microballon can also be strengthened sun reflection and transmission of heat by convection, thus trap heat, and by strengthening solar heat reflection and to heat passage remarkable resistance, reaching the thermal equilibrium temperature that reduces body surface, it is remarkable to make the exterior wall temperature reduce effect of heat insulation.
Contain the Dicalcium Phosphate (Feed Grade) similar to Portland clinker and tricalcium silicate in the slag, and the generation temperature height of slag (generates temperature more than 1560 ℃, the firing temperature of Portland clinker is then about 1400 ℃), compact crystallization, crystal grain is bigger, hydration rate is slow, therefore slag can be called the burning Portland clinker.Slag adds gypsum and other additives in levigate back, can be made into hydraulic cementing materials, show as steel slag cement on the industrial utilization, so slag is fit to do material of construction very much.
Water reducer molecular energy oriented adsorption is in cement particle surface, cement particle surface is had with a kind of electric charge (being generally negative charge), form the Coulomb repulsion effect, impel cement granules to disperse mutually, flucculation structure is destroyed, discharge by wrapping portion water, participate in flowing, thereby increase the flowability of mortar effectively.
The present invention is according to the closestpacking theory, and according to the size distribution situation of raw material, rationally preparation raw material is maximized favourable factors and minimized unfavourable ones, and obtains the dry-mix of excellent property with this.
To sum up, the beneficial effect of dry-mix of the present invention is: tensile strength is big, and cohesive force is strong, is not easy dry shrinkage and cracking; With low cost, widely apply trade waste, not only reduced product cost but also can turn waste into wealth; Good heat insulating, effectively heat-insulation and heat-preservation.Dry-mix of the present invention not only can be applied to the common buildings construction because of its superperformance, also can be used for the road surface, top layer of airfield runway, motorway and bridge, also can be applicable in the bed course between railway concrete base or the supporting layer.
Embodiment
Utilize the dry-mix of industrial residue preparation to be further detailed below in conjunction with specific embodiment to the present invention.
Embodiment 1
A kind of dry-mix, its proportioning raw materials following (by weight percentage): flyash 25%, steel-making slag powder 20%, cement 15%, gypsum 5%, quartz sand 20%, polycarboxylate water-reducer 15%.With above-mentioned raw materials mix back homogenizing certain hour pack get final product product.During use dry-mix is mixed by the weight ratio of 1:0.15-0.3 with water, namely can be used for construction after stirring.
In the present embodiment, flyash is from Jiuquan power plant of Iron And Steel Co., Ltd, and steel-making slag powder is from the shrend slag ground-slag of Jiuquan Iron And Steel Co., Ltd blast furnace steel-making discharge.The chemical ingredients of flyash and steel-making slag powder is as follows:
The analysis of table 1 chemical composition of PCA
| Composition | SiO 2 | Al 2O 3 | Fe 2O 3 | CaO |
| Content (%) | 61.42 | 25.51 | 7.24 | 5.83 |
Table 2 steel-making slag powder chemical composition analysis
| Composition | SiO 2 | Al 2O 3 | Fe 2O 3 | CaO | MgO | MnO | TiO 2 | SO 3 | K 2O | Na 2O |
| Content (%) | 34.94 | 13.50 | 1.41 | 36.26 | 7.58 | 1.20 | 1.51 | 2.37 | 0.90 | 0.33 |
Embodiment 2
A kind of dry-mix, its proportioning raw materials following (by weight percentage): flyash 35%, steel-making slag powder 10%, cement 10%, gypsum 10%, quartz sand 15%, polycarboxylate water-reducer 20%.The chemical ingredients of present embodiment flyash and steel-making slag powder is with embodiment 1.With above-mentioned raw materials mix back homogenizing certain hour pack get final product product.During use dry-mix is mixed by the weight ratio of 1:0.15-0.3 with water, namely can be used for construction after stirring.
Embodiment 3
A kind of dry-mix, its proportioning raw materials following (by weight percentage): flyash 40%, steel-making slag powder 30%, cement 5%, gypsum 2%, quartz sand 10%, polycarboxylate water-reducer 13%.The chemical ingredients of present embodiment flyash and steel-making slag powder is with embodiment 1.With above-mentioned raw materials mix back homogenizing certain hour pack get final product product.During use dry-mix is mixed by the weight ratio of 1:0.15-0.3 with water, namely can be used for construction after stirring.
The dry-mix that above-described embodiment is provided detects, as previously mentioned, dry-mix of the present invention can be used for the construction construction of airport, motorway or railway etc., therefore detect according to choosing wherein higher " the provisional technical qualification of Passenger dedicated railway Bridge pot rubber bearing " (No. [2005] 101, science and technology base) of standard-required, detected result is as follows:
As seen, dry-mix provided by the invention can satisfy the requirement of high-grade construction construction such as airport, motorway or railway and general grade construction construction.
Claims (4)
1. a dry-mix that utilizes the industrial residue preparation is characterized in that, by mixing by following mass percent proportion raw material:
Flyash 25-40%, steel-making slag powder 10-30%, cement 5-15%, gypsum 2-10%, quartz sand 10-20%, water reducer 13-20%.
2. a kind of dry-mix that utilizes the industrial residue preparation according to claim 1 is characterized in that the particle diameter of described quartz sand is 2-5mm.
3. a kind of dry-mix that utilizes the industrial residue preparation according to claim 1 is characterized in that described gypsum is desulfurated plaster.
4. a kind of dry-mix that utilizes the industrial residue preparation according to claim 1 is characterized in that described water reducer is polycarboxylate water-reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222549.0A CN103265258B (en) | 2012-10-28 | 2013-06-06 | Dry powder mortar prepared from industrial residues |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210416731.5 | 2012-10-28 | ||
| CN201210416731 | 2012-10-28 | ||
| CN201310222549.0A CN103265258B (en) | 2012-10-28 | 2013-06-06 | Dry powder mortar prepared from industrial residues |
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| CN103265258A true CN103265258A (en) | 2013-08-28 |
| CN103265258B CN103265258B (en) | 2014-07-30 |
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| CN201310222549.0A Expired - Fee Related CN103265258B (en) | 2012-10-28 | 2013-06-06 | Dry powder mortar prepared from industrial residues |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003667A (en) * | 2014-06-03 | 2014-08-27 | 上海宝冶钢渣综合开发实业有限公司 | Hollow concrete partition wall plate and production method thereof |
| PT107171A (en) * | 2013-09-20 | 2015-03-20 | Inst Politécnico De Setúbal | ARGAMASSA, ITS METHOD OF OBTAINING AND RESPECTING USE |
| CN111302711A (en) * | 2020-03-03 | 2020-06-19 | 嵊州市路通水泥制品有限公司 | Dry powder mortar production process |
| CN111439979A (en) * | 2020-03-03 | 2020-07-24 | 嵊州市路通水泥制品有限公司 | Waste residue recycled mortar |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT107171A (en) * | 2013-09-20 | 2015-03-20 | Inst Politécnico De Setúbal | ARGAMASSA, ITS METHOD OF OBTAINING AND RESPECTING USE |
| CN104003667A (en) * | 2014-06-03 | 2014-08-27 | 上海宝冶钢渣综合开发实业有限公司 | Hollow concrete partition wall plate and production method thereof |
| CN111302711A (en) * | 2020-03-03 | 2020-06-19 | 嵊州市路通水泥制品有限公司 | Dry powder mortar production process |
| CN111439979A (en) * | 2020-03-03 | 2020-07-24 | 嵊州市路通水泥制品有限公司 | Waste residue recycled mortar |
Also Published As
| Publication number | Publication date |
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| CN103265258B (en) | 2014-07-30 |
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