CN103803918A - Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof - Google Patents
Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof Download PDFInfo
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- CN103803918A CN103803918A CN201310711568.XA CN201310711568A CN103803918A CN 103803918 A CN103803918 A CN 103803918A CN 201310711568 A CN201310711568 A CN 201310711568A CN 103803918 A CN103803918 A CN 103803918A
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Abstract
The invention belongs to the technical field of building materials and in particular relates to porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and a using method thereof. The porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar comprises the following raw materials: ordinary Portland cement, sulphate aluminum cement, porcelain cement waste, slag powder, pulverized fuel ash, quartz sand, a high-performance water reducing agent, an early strength agent, a swelling agent, a water-retaining agent, an antifoaming agent and a binder. The porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar overcomes the disadvantages that the traditional repairing mortar has low strength, poor volume contraction and poor binding power, and can solve the problem of treatment of porcelain powder waste in ceramic industry. The porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar has the characteristics of high fluidity, good self-compaction property, high early strength, tininess in expansion, strong binding powder, good anti-permeability performance, good wear-resisting property and the like, is mainly used for repairing or emergency maintenance of the concrete structural crack.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of cement based microdilatancy crack repairing mortar and using method that is mixed with porcelain powder waste material.
Background technology
Cement based microdilatancy crack repairing mortar is the cement-based mortar through high molecular polymer modification, large and the good water-retaining property of fresh mortar mobility, after sclerosis, there is matched well and excellent cohesiveness, can meet the requirements such as ultimate compression strength, folding strength, wear resistance, flexibility and the low-shrinkage of repairing work to material.Be mainly used in reinforcing and the transformation etc. of the concrete structure crack repairings such as bridge and old building constructions, there is easy construction, workability good and be easy to the feature such as member facade and end face construction, and outward appearance is good and weather resistance is good after hardened material, be the first-selected patching material of the damaged fracture width of concrete topping while being less than 50mm.
According to statistics, the whole world exceedes the concrete structure of 10 years work-ing life at present, and nearly 40% exists part or serious damage, is all necessary repair and protect.Especially those are related to the concrete structure of national economy, as highway bridge, house or public building, harbour engineering, hydro project and other Industrial buildings etc.During these concrete structures damage, a most important class is crack, and the generation in crack and development have great threat to concrete structure, how to suppress that crack produces, filling cracks defect is the focus of current research.Cement based microdilatancy crack repairing mortar is widely used in concrete structure reinforcement, and this material has the following advantages: 1) good cohesiveness and water tolerance; 2) due to self good water-retentivity, that curing condition is required is lower; 3) autogenous shrinkage is more lower slightly compared with normal concrete, even produces microdilatancy effect; 4) Young's modulus is lower than normal concrete is high for folding strength, tensile strength, wear resistance, impact resistance and the endurance quality after sclerosis; 5) can make its color adjustable according to cementitious material system collocation, can at utmost reduce and concrete structure matrix aberration.Therefore, cement based microdilatancy crack repairing mortar is being widely used aspect concrete structure reparation and crack repairing.
The present invention adopts the method for mixing porcelain powder waste material to prepare cement based microdilatancy crack repairing mortar, using silicate cement-aluminosulfate cement-porcelain powder waste material-slag powders-flyash as plural gel system, overcome to a certain extent that the development of traditional cement based crack repairing mortar early strength is slow, volumetric shrinkage is large and the shortcoming such as poor durability, and take full advantage of ceramic industry byproduct, for energy-saving and emission-reduction and the low carbonization of building industry provide new thinking.
Summary of the invention
The object of the present invention is to provide a kind of preparation cost low, there is high workability, high-moisture-retention, microdilatancy, early strength development is fast, later strength is high, good impermeability and cement based microdilatancy crack repairing mortar and the using method of wear resistance.
A kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material that the present invention proposes, be made up of ordinary Portland cement, aluminosulfate cement, porcelain powder waste material, slag powders, flyash, quartz sand, high-performance water reducing agent, hardening accelerator, swelling agent, water-holding agent, defoamer and binding agent, the weight ratio of each component is:
Ordinary Portland cement 100
Aluminosulfate cement 10-40
Porcelain powder waste material 10-40
Slag powders 5-25
Flyash 5-25
Quartz sand 100-300
High-performance water reducing agent 0.50-1.50
Hardening accelerator 0.10-1.50
Swelling agent 4-10
Water-holding agent 0.02-0.10
Defoamer 0.01-0.10
Binding agent 1.0-3.0.
Each component preferably weight ratio is:
Ordinary Portland cement 100
Aluminosulfate cement 15-25
Porcelain powder waste material 15-25
Slag powders 10-15
Flyash 10-15
Quartz sand 150-250
High-performance water reducing agent 0.60-1.20
Hardening accelerator 0.40-1.20
Swelling agent 6-8
Water-holding agent 0.04-0.08
Defoamer 0.02-0.08
Binding agent 1.5-2.5.
In the present invention, described ordinary Portland cement is 52.5 grades of ordinary Portland cements.
In the present invention, described aluminosulfate cement is 42.5 grades of quick hardening sulphoaluminate cements.
In the present invention, described porcelain powder waste material becomes through scraping a series of deep processings such as thicknessing, grinding and polishing and edging chamfering the brick bits that produce after polished tile goods for porcelain brick and thick glazed brick etc., then forms through grinding, and its specific surface area is (300-330) m
2/ Kg, SiO
2mass percent is 30%-40%, and CaO mass percent is 35%-45%, Al
2o
3mass percent is 10%-20%.
In the present invention, described slag powders is the one in S95 slag powders or S105 slag powders.
In the present invention, described flyash is
level flyash, its free calcium oxide mass percent is less than or equal to 3.0%, and loss on ignition mass percent is less than or equal to 5.0%.
In the present invention, the fineness of described quartz sand is (10-20) order.
In the present invention, described high-performance water reducing agent is powdery polycarboxylic acid series high-performance dehydragent.
In the present invention, described hardening accelerator is Quilonum Retard.
In the present invention, described swelling agent is the one in calcium oxide expansion agents or calcium sulphoaluminate class swelling agent.
In the present invention, described water-holding agent is hydroxypropylcelluloether ether.
In the present invention, described defoamer is silicon-dioxide-mineral oil defoaming agent.
In the present invention, described binding agent is latex powder.
Preparation method's concrete steps of a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material that the present invention proposes are as follows:
(1). the preparation of porcelain powder waste material: the brick bits that porcelain brick and thick glazed brick etc. are produced through scraping a series of deep processings such as thicknessing, grinding and polishing and edging chamfering, adopt ball mill grinding (30-50) min, can prepare the porcelain powder waste material that fineness is suitable;
(2). take ordinary Portland cement, aluminosulfate cement, porcelain powder waste material, slag powders, flyash, quartz sand, high-performance water reducing agent, swelling agent, hardening accelerator, water-holding agent, defoamer and binding agent by aforementioned part by weight, add stirring (10-15) min in stirrer, until mix, preparation becomes the cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material.
The using method of a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material that the present invention proposes, concrete steps are as follows:
Accurately take the above-mentioned cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material preparing, first water is added to stirrer, along with blade of stirrer rotates, mortar is at the uniform velocity dropped into stirrer.After stirring, can construct.Amount of water is the 15%-25% of product weight of the present invention.
Product of the present invention is a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material, and its feature is as follows:
1. in the present invention, adopting ordinary Portland cement and aluminosulfate cement is as main bonding component.Two kinds of cement are used in conjunction with, can reach the effect of mutual supplement with each other's advantages: utilize aluminosulfate cement the hardening effect of silicate cement to be improved to the early strength of silicate cement; Utilize silicate cement to make up the poor defect of aluminosulfate cement later strength; Utilize aluminosulfate cement to react the ettringite generating with calcium hydroxide and gypsum and play shrinkage-compensating or microdilatancy.
2. porcelain powder waste material, slag powders and flyash, as adulterant, form plural gel system together with two kinds of cement.Adopt porcelain powder waste material, slag powders and flyash combined addition, give full play to three's activity, the early strength to whole system and later strength can play very large effect.
Porcelain powder waste material has higher pozzolanic activity, the calcium oxide that it and hydrated reaction of cement produce reacts, significantly reduce calcium oxide amount of crystals a large amount of very strong hydrated calcium silicate gels of gelling that produce, play promoter action for the raising of the closely knit and later strength of whole system structure.
Breeze composition is similar to cement clinker, wherein SiO
2, CaO and Al
2o
3total content approximately reaches 90%, and activity is higher, is a kind of the most frequently used concrete admixture, and the particularly raising of later strength of strength development that the hydrated calcium silicate gel that its aquation generates and drated calcium aluminate gel can Promotion systems, plays plural gel effect.
Flyash is a kind of material with lateral reactivity material.The calcium hydroxide reaction that the silicon-dioxide in flyash and aluminum oxide produce can be with hydrated cementitious time generates new stable hydrated calcium silicate and thereby drated calcium aluminate has improved the intensity of crack repairing mortar and the ability of chemical resistance of concrete; And fly ash grain particle shape is complete, smooth surface, quality densification, can play water-reduction, compaction and homogeneous effect, thereby improves the pumpability of cement based crack repairing mortar in the time of construction.
3. to select fineness be (10-20) object fine quartz sand to quartz sand, makes the mortar can be for repairing the less crack of diameter, and the little quartz sand of fineness contributes to improve the mortar intensity in each length of time simultaneously.
4. can reduce water consumption adding of high-performance water reducing agent, improve fluidity of slurry and stability, improve mortar workability, contribute to improve mortar strength, reduce drying shrinkage.
5. hardening accelerator adopts Quilonum Retard, can improve early strength, avoids early stage damage inactivation.
6. swelling agent adopts the one in calcium oxide expansion agents or sulplo-aluminate class swelling agent, can in hydrated cementitious, process of setting, generate a large amount of swelling property crystal water compound ettringite, be filled in mortar micropore, produce appropriateness and expand, the string stress producing while offsetting mortar hardening.
7. make mending mortar having under larger flowing property condition adding of water-holding agent, do not occur bleeding and segregation phenomenon.
8. defoamer adopts silicon-dioxide-mineral oil defoaming agent, can reduce the air content of fresh mortar, heightens slurry density, thereby improves mortar strength.
9. binding agent adopts latex powder, can improve the adhesive property of mortar, makes mending mortar and crack well-bonded.
Product of the present invention is using ordinary Portland cement, aluminosulfate cement, porcelain powder waste material, slag powders, flyash as gelling material, for gathering materials, and add high efficiency water reducing agent, hardening accelerator, swelling agent, water-holding agent, defoamer and binding agent to be prepared from quartz sand.Its preparation technology is simple, fresh mortar mobility and good water-retaining property, and early strength development is fast and later strength is high, and volume microdilatancy is impervious and wear resistance is good, is applicable to the crack repairing that width is less than 50mm, has good economic benefit and social benefit.
Embodiment
Further illustrate the present invention below by embodiment.
Embodiment 1, a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material, by ordinary Portland cement 100, aluminosulfate cement 10, porcelain powder waste material 10, S95 slag powders 5, flyash 5, quartz sand 100, high-performance water reducing agent 0.50, hardening accelerator 0.10, calcium oxide expansion agents 4, water-holding agent 0.02, defoamer 0.01 and binding agent 1.0 weight ratios are formulated.Add water and stir by 25% of the above-mentioned cement based microdilatancy crack repairing mortar gross weight that is mixed with porcelain powder waste material, test.The performance test results is in table 1.
Embodiment 2, a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material, by ordinary Portland cement 100, aluminosulfate cement 25, porcelain powder waste material 20, S105 slag powders 15, flyash 15, quartz sand 200, high-performance water reducing agent 1.00, hardening accelerator 0.80, sulplo-aluminate class swelling agent 6, water-holding agent 0.06, the weight ratio of defoamer 0.05 and binding agent 2.0 is formulated.Add water and stir by 20% of the above-mentioned cement based microdilatancy crack repairing mortar gross weight that is mixed with porcelain powder waste material, test.The performance test results is in table 1.
Embodiment 3, a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material, by ordinary Portland cement 100, aluminosulfate cement 40, porcelain powder waste material 40, S95 slag powders 25, flyash 25, quartz sand 300, high-performance water reducing agent 1.50, hardening accelerator 1.50, calcium oxide expansion agents 10, water-holding agent 0.10, the weight ratio of defoamer 0.10 and binding agent 3.0 is formulated.Add water and stir by 15% of the above-mentioned cement based microdilatancy crack repairing mortar gross weight that is mixed with porcelain powder waste material, test.The performance test results is in table 1.
Table 1 embodiment the performance test results
Claims (10)
1. one kind is mixed with the cement based microdilatancy crack repairing mortar of porcelain powder waste material, it is characterized in that being made up of ordinary Portland cement, aluminosulfate cement, porcelain powder waste material, slag powders, flyash, quartz sand, high-performance water reducing agent, hardening accelerator, swelling agent, water-holding agent, defoamer and binding agent, the weight ratio of each component is:
Ordinary Portland cement 100
Aluminosulfate cement 10-40
Porcelain powder waste material 10-40
Slag powders 5-25
Flyash 5-25
Quartz sand 100-300
High-performance water reducing agent 0.50-1.50
Hardening accelerator 0.10-1.50
Swelling agent 4-10
Water-holding agent 0.02-0.10
Defoamer 0.01-0.10
Binding agent 1.0-3.0.
2. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, it is characterized in that each component preferably weight ratio be:
Ordinary Portland cement 100
Aluminosulfate cement 15-25
Porcelain powder waste material 15-25
Slag powders 10-15
Flyash 10-15
Quartz sand 150-250
High-performance water reducing agent 0.60-1.20
Hardening accelerator 0.40-1.20
Swelling agent 6-8
Water-holding agent 0.04-0.08
Defoamer 0.02-0.08
Binding agent 1.5-2.5.
3. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, is characterized in that described ordinary Portland cement is 52.5 grades of ordinary Portland cements, and described aluminosulfate cement is 42.5 grades of quick hardening sulphoaluminate cements.
4. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, is characterized in that described porcelain powder waste material is that ceramics factory processes remaining leftover bits, forms through grinding, and its specific surface area is (300-330) m
2/ Kg, SiO
2mass percent is 30%-40%, and CaO mass percent is 35%-45%, Al
2o
3mass percent is 10%-20%.
5. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, is characterized in that described slag powders is the one in S95 slag powders or S105 slag powders.
6. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, it is characterized in that described flyash is I level flyash, its free calcium oxide mass percent is less than or equal to 3.0%, and loss on ignition mass percent is less than or equal to 5.0%.
7. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, the fineness that it is characterized in that described quartz sand is (10-20) order, described high-performance water reducing agent is powdery polycarboxylic acid series high-performance dehydragent, and described hardening accelerator is Quilonum Retard.
8. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, is characterized in that described swelling agent is the one in calcium oxide expansion agents or aluminium sulfate expanding agent.
9. a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material according to claim 1, is characterized in that described water-holding agent is hydroxypropylcelluloether ether, and described defoamer is silicon-dioxide-mineral oil defoaming agent, and described binding agent is latex powder.
10. a using method for a kind of cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material as claimed in claim 1, is characterized in that concrete steps are as follows:
Accurately take the cement based microdilatancy crack repairing mortar of the admixture porcelain powder waste material preparing, first water is added to stirrer, along with blade of stirrer rotates, the cement based microdilatancy crack repairing mortar that is mixed with porcelain powder waste material is at the uniform velocity dropped into stirrer, after stirring, can construct; Amount of water is the 15%-25% of cement based microdilatancy crack repairing mortar weight.
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| CN111777393A (en) * | 2020-07-12 | 2020-10-16 | 西卡(上海)管理有限公司 | Quick-drying elastic repair mortar with micro-expansibility and preparation method thereof |
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| CN112551994A (en) * | 2020-11-13 | 2021-03-26 | 广州大学 | Special dry-mixed mortar for plastering construction by 2D (two-dimensional) guniting method |
| CN112551994B (en) * | 2020-11-13 | 2022-05-03 | 广州大学 | Special dry-mixed mortar for plastering construction by 2D (two-dimensional) guniting method |
| CN112939555A (en) * | 2021-01-27 | 2021-06-11 | 重庆重交再生资源开发股份有限公司 | Unexposed concrete repair mortar and preparation method |
| CN113121177A (en) * | 2021-05-18 | 2021-07-16 | 河北工业大学 | Polymer repair mortar and preparation method thereof |
| CN114213094A (en) * | 2021-12-24 | 2022-03-22 | 上海力阳道路加固科技股份有限公司 | Regenerated ceramic powder geopolymer repair mortar and preparation method thereof |
| CN114213094B (en) * | 2021-12-24 | 2022-08-30 | 上海力阳道路加固科技股份有限公司 | Regenerated ceramic powder geopolymer repair mortar and preparation method thereof |
| CN114349430A (en) * | 2022-01-19 | 2022-04-15 | 内蒙古工业大学 | Environment-friendly micro-expansion high-ductility cement-based composite material and preparation method thereof |
| CN115417649A (en) * | 2022-08-22 | 2022-12-02 | 北京安科兴业科技股份有限公司 | High-durability self-repairing inorganic material for reinforcement and repair and use method thereof |
| CN115417649B (en) * | 2022-08-22 | 2023-05-16 | 北京安科兴业科技股份有限公司 | High-durability self-repairing inorganic material for reinforcement and repair and using method |
| CN115650658A (en) * | 2022-09-19 | 2023-01-31 | 福建省地恒建材有限责任公司 | Quick repairing material for concrete pavement |
| CN115716740A (en) * | 2022-11-24 | 2023-02-28 | 浙江博宏新材料股份有限公司 | Waterproof interface mortar for steel structure inner wall |
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Application publication date: 20140521 |