CN104496391A - Dividing seam filling and patching material and preparation method thereof - Google Patents
Dividing seam filling and patching material and preparation method thereof Download PDFInfo
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- CN104496391A CN104496391A CN201510018250.2A CN201510018250A CN104496391A CN 104496391 A CN104496391 A CN 104496391A CN 201510018250 A CN201510018250 A CN 201510018250A CN 104496391 A CN104496391 A CN 104496391A
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- patching material
- joint filling
- quartz sand
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- seam joint
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Abstract
The invention provides a dividing seam filling and patching material and a preparation method thereof. The dividing seam filling and patching material comprises aggregate, powder and mixing additives. The aggregate comprises, by weight percentage, 8%-12% of quartz sand of 40-70 meshes, 15%-25% of quartz sand of 80-120 meshes and 8%-12% of quartz sand of 180 meshes. The powder comprises, by weight percentage, 15%-25 % of triple superphosphate, 25%-35% of cement, 3%-7% of gypsum and 1%-3% of silica fume. The mixing additives comprise, by weight percentage, 2%-3% of rubber powder, 0.01%-0.05% of cellulose ether, 0.01%-0.03% of wood fiber and 0.001%-0.01% of starch ether. The dividing seam filling and patching material is quick in strength increasing, free of shrinkage and aging, long in service life, flush with the ground after use, high in load-bearing capability and easy to construct and operate.
Description
Technical field
The present invention relates to building material technical field, particularly one cuts parting seam joint filling patching material and preparation method thereof after being exclusively used in concrete floor, sand-cement slurry terrace, aggregate abrasion-proof terrace etc.
Background technology
For preventing rigid face strain crack, usually will arrange parting seam, having constructed and having carried out WATER REPELLENT to parting seam afterwards, as filled out the flexible material such as ointment, pitch, the terrace of higher standard adopts weather proofing sealant to carry out joint filling.These existing parting seam pointing ubiquities are aging, rotten, work-ing life is short, fill the problems such as initial stage weight capacity difference.
Summary of the invention
The present invention proposes a kind of parting seam joint filling patching material and preparation method thereof, be intended to solve in prior art exist aging, rotten, work-ing life is short, the problem of filling initial stage weight capacity difference.
Technical scheme of the present invention is achieved in that
A kind of parting seam joint filling patching material, comprise aggregate, powder and mixed additive, aggregate comprises the component accounting for the following weight percent of parting seam joint filling patching material: 40-70 order quartz sand 8-12%, 80-120 order quartz sand 15-25%, 180 order quartz sand 8-12%; Powder comprises the component accounting for the following weight percent of parting seam joint filling patching material: coarse whiting 15-25%, cement 25-35%, gypsum 3-7% and silicon powder 1-3%; Mixed additive comprises the component accounting for the following weight percent of parting seam joint filling patching material: rubber powder 2-3%, 0.01-0.05% ether of cellulose, wood fibre 0.01-0.03% and starch ethers 0.001-0.01%.
Select quartz sand that multiple granularity differs as aggregate, contribute to improving between aggregate in conjunction with compactness, realize being seamless bonding.
The gypsum used in the present invention can select commercially available any gypsum.But, from the aspect of intensity expression power, be preferably dehydrated gyp-, particularly II type dehydrated gyp-or natural dehydrated gyp-.
Starch ethers and ether of cellulose all have extraordinary fast thickening ability and lubricity, and few consumption can reach good result of use, can also improve the anti-sagging ability of material, improve its sag resistance.Starch ethers than ether of cellulose low price, with starch ethers part substituted cellulose ether, to reduce production cost.
Wood fibre is easily dispersed in parting seam joint filling patching material and forms three-D space structure, and can adsorb self heavy 5-8 moisture doubly, and this structure and characteristics improves workability energy and the antiskid pendant property of material, accelerates speed of application; Wood fibre dimensional stability and thermostability serve good thermal-insulating and anti-cracking effect in lagging material; The transmission moisture function of wood fibre make pulp surface and basic unit's interface hydration reaction sufficient, thus improve material surface strength, with the cohesive strength of basic unit and the homogeneity of the strength of materials.Starch ethers uses together with wood fibre, makes this two kinds of product performance and mutual supplement with each other's advantages.
Rubber powder and Powdered redispersable latex powder, add the after polymerization performance that rubber powder can significantly improve product, extend the work-ing life of product.
Preferably, aggregate comprises the component accounting for the following weight percent of parting seam joint filling patching material: 40-70 order quartz sand 10%, 80-120 order quartz sand 20%, 180 order quartz sand 10%; Powder comprises the component accounting for the following weight percent of parting seam joint filling patching material: coarse whiting 20%, cement 29.9%, gypsum 5% and silicon powder 2%; Mixed additive comprises the component accounting for the following weight percent of parting seam joint filling patching material: rubber powder 2.5%, ether of cellulose 0.03%, wood fibre 0.02% and starch ethers 0.005%.
Preferred further, also comprise water reducer, the weight percent of water reducer in joint filling patching material is 0.545%.
More preferred, water reducer is the one in lignosulfonic acid based water reducer, poly carboxylic acid series water reducer, naphthalene water reducer or melamine based water reducer.
The water reducer used in the present invention is the assembly of material cement to dissemination, air entrainment effect, the intensity that improves liquidity, promotes, be mainly used in reducing parting seam joint filling patching material mixing time resistivity, preferred melamine based water reducer.
The invention allows for a kind of preparation method of parting seam joint filling patching material, first sequentially add 40-70 order quartz sand, 80-120 order quartz sand, 180 order quartz sand and coarse whitings, slow stirring at least 10min, then cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers is added, last moderate-speed mixer at least 20min.
Preferably, the stirring velocity slowly stirred is 40-60rpm, and the stirring velocity of moderate-speed mixer is 150-200rpm.
During use, add water in the product prepared according to the method described above and be stirred to atherosclerotic, independent joint filling or the joint filling of cooperation plastic strip.
Compared with prior art, the parting seam joint filling patching material tool that the present invention proposes has the following advantages:
1, gain in strength is fast, normal temperature 24h can reach 20MPa and more than;
2, ungauged regions, not aging, long service life;
3, flush with ground after using, weight capacity is strong, and the joint filling initial stage has wheel to pass through, and also can not destroy parting seam both sides;
4, construct simple, easy to operate.
Embodiment
Below in conjunction with embodiments of the invention, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Gypsum in following examples selects II type dehydrated gyp-, and melamine based water reducer selected by water reducer, and all the other raw materials used are all the identical commercially available prod of identical producer.
Embodiment 1
A kind of parting seam joint filling patching material, comprises aggregate and mixed additive amounts to 100g, and aggregate comprises: 60 order quartz sand 10g, 90 order quartz sand 20g, 180 order quartz sand 10g, coarse whiting 20g, cement 29.9g, gypsum 5g and silicon powder 2g; Mixed additive comprises: rubber powder 2.5g, ether of cellulose 0.03g, wood fibre 0.02g, starch ethers 0.005g and water reducer 0.545g.
During preparation, first sequentially add 60 order quartz sands, 90 order quartz sands, 180 order quartz sand and coarse whitings, slowly 10min is stirred with the stirring velocity of 60rpm, then add cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers, finally stir 20min with the stirring velocity of 200rpm.
During use, add water in the product prepared according to the method described above and be stirred to atherosclerotic, independent joint filling or the joint filling of cooperation plastic strip.
Embodiment 2
A kind of parting seam joint filling patching material, comprises aggregate and mixed additive amounts to 100g, and aggregate comprises: 50 order quartz sand 10.405g, 90 order quartz sand 25g, 180 order quartz sand 8g, coarse whiting 20g, cement 25g, gypsum 7g and silicon powder 1g; Mixed additive comprises: rubber powder 3g, ether of cellulose 0.01g, wood fibre 0.03g, starch ethers 0.01g and water reducer 0.545g.
During preparation, first sequentially add 50 order quartz sands, 90 order quartz sands, 180 order quartz sand and coarse whitings, 15min is stirred with the stirring velocity of 50rpm, then add cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers, finally stir 30min with the stirring velocity of 180rpm.
During use, add water in the product prepared according to the method described above and be stirred to atherosclerotic (weight that the product of identical weight adds water is consistent with embodiment 1), independent joint filling or the joint filling of cooperation plastic strip.
Embodiment 3
A kind of parting seam joint filling patching material, comprises aggregate and mixed additive amounts to 100g, and aggregate comprises: 40 order quartz sand 12g, 80 order quartz sand 15g, 180 order quartz sand 12g, coarse whiting 17.394g, cement 35g, gypsum 3g and silicon powder 3g; Mixed additive comprises: rubber powder 2g, ether of cellulose 0.05g, wood fibre 0.01g, starch ethers 0.001g and water reducer 0.545g.
During preparation, first sequentially add 40 order quartz sands, 80 order quartz sands, 180 order quartz sand and coarse whitings, slowly 25min is stirred with the stirring velocity of 40rpm, then add cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers, finally stir 35min with the stirring velocity of 160rpm.
During use, add water in the product prepared according to the method described above and be stirred to atherosclerotic (weight that the product of identical weight adds water is consistent with embodiment 1), independent joint filling or the joint filling of cooperation plastic strip.
Embodiment 4
A kind of parting seam joint filling patching material, comprises aggregate and mixed additive amounts to 100g, and aggregate comprises: 70 order quartz sand 8g, 120 order quartz sand 25g, 180 order quartz sand 11.905g, coarse whiting 15g, cement 30g, gypsum 4g and silicon powder 2.5g; Mixed additive comprises: rubber powder 3g, ether of cellulose 0.01g, wood fibre 0.03g, starch ethers 0.01g and water reducer 0.545g.
During preparation, first sequentially add 70 order quartz sands, 120 order quartz sands, 180 order quartz sand and coarse whitings, slowly 10min is stirred with the stirring velocity of 60rpm, then add cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers, finally stir 20min with the stirring velocity of 200rpm.
During use, add water in the product prepared according to the method described above and be stirred to atherosclerotic (weight that the product of identical weight adds water is consistent with embodiment 1), independent joint filling or the joint filling of cooperation plastic strip.
Test result:
(1) strength test: construct according to above-described embodiment 1-4, after 24h, intensity reaches 20MPa, 21.5MPa, 20.8MPa and 24MPa respectively;
(2) voidage test: after constructing according to above-described embodiment 1-4, each embodiment repair parting seam surface flushes with substrate layer, surfacing, without macroscopic concavo-convex, porosity is respectively 0.05%, 0.04%, 0.02% and 0.01%.
(3) test in work-ing life: after constructing according to above-described embodiment 1-4, the work-ing life of at least 5 years can be kept.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a parting seam joint filling patching material, is characterized in that: comprise aggregate, powder and mixed additive,
Described aggregate comprises the component accounting for the following weight percent of described parting seam joint filling patching material: 40-70 order quartz sand 8-12%, 80-120 order quartz sand 15-25%, 180 order quartz sand 8-12%;
Described powder comprises the component accounting for the following weight percent of described parting seam joint filling patching material: coarse whiting 15-25%, cement 25-35%, gypsum 3-7% and silicon powder 1-3%;
Described mixed additive comprises the component accounting for the following weight percent of described parting seam joint filling patching material: rubber powder 2-3%, ether of cellulose 0.01-0.05%, wood fibre 0.01-0.03% and starch ethers 0.001-0.01%.
2. parting seam joint filling patching material according to claim 1, is characterized in that:
Described aggregate comprises the component accounting for the following weight percent of described parting seam joint filling patching material: 40-70 order quartz sand 10%, 80-120 order quartz sand 20%, 180 order quartz sand 10%;
Described powder comprises the component accounting for the following weight percent of described parting seam joint filling patching material: coarse whiting 20%, cement 29.9%, gypsum 5% and silicon powder 2%;
Described mixed additive comprises the component accounting for the following weight percent of described parting seam joint filling patching material: rubber powder 2.5%, 0.03% ether of cellulose, wood fibre 0.02% and starch ethers 0.005%.
3. parting seam joint filling patching material according to claim 1, is characterized in that: also comprise water reducer, and the weight percent of described water reducer in described joint filling patching material is 0.545%.
4. parting seam joint filling patching material according to claim 3, is characterized in that: described water reducer is the one in lignosulfonic acid based water reducer, poly carboxylic acid series water reducer, naphthalene water reducer or melamine based water reducer.
5. a preparation method for parting seam joint filling patching material as claimed in claim 3, is characterized in that:
First sequentially add 40-70 order quartz sand, 80-120 order quartz sand, 180 order quartz sand and coarse whitings, slow stirring at least 10min, then cement, gypsum, silicon powder, rubber powder, water reducer, ether of cellulose, wood fibre and starch ethers is added, last moderate-speed mixer at least 20min.
6. the preparation method of parting seam joint filling patching material according to claim 5, is characterized in that:
The stirring velocity of described slow stirring is 40-60rpm, and the stirring velocity of described moderate-speed mixer is 150-200rpm.
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Cited By (4)
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| CN105906289A (en) * | 2016-01-26 | 2016-08-31 | 广东电网有限责任公司电力科学研究院 | Concrete repairing dry-mixed mortar and preparation method thereof |
| CN111410497A (en) * | 2019-09-27 | 2020-07-14 | 绿城装饰工程集团有限公司 | Waterproof gypsum-based caulking paste |
| CN112279599A (en) * | 2020-11-18 | 2021-01-29 | 上海卫吉节能科技有限公司 | Polymer reinforced fiber modified repair mortar and preparation method thereof |
| CN115073965A (en) * | 2022-06-29 | 2022-09-20 | 厦门百正防腐工程有限公司 | Anti-cracking repair material applied to surface of bridge tunnel and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112279599A (en) * | 2020-11-18 | 2021-01-29 | 上海卫吉节能科技有限公司 | Polymer reinforced fiber modified repair mortar and preparation method thereof |
| CN115073965A (en) * | 2022-06-29 | 2022-09-20 | 厦门百正防腐工程有限公司 | Anti-cracking repair material applied to surface of bridge tunnel and preparation method thereof |
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