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Multi-component concrete composite repair mortar

A technology for repairing mortar and concrete, which is applied in the field of building materials, and can solve the problems affecting the normal use of buildings and the long maintenance time of ordinary concrete construction, and achieve the effects of strong construction adaptability, high early strength and good durability

Inactive Publication Date: 2020-11-03
江苏智信达建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary concrete prepared with Portland cement has low cost, high strength, wide adaptability, and good durability. It has been widely used in the fields of indoor and outdoor floors and decorative floors of industrial and civil buildings; The surface aging of the floor and cracking caused by various reasons are relatively common, which requires rapid repair of cracks, sanding, surface aging and other defects in the old concrete floor to restore the use function of the floor; However, the construction, condensation and curing time of ordinary concrete are too long, which affects the normal use of buildings.

Method used

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  • Multi-component concrete composite repair mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: The multi-component concrete composite repair mortar of the present invention is prepared by mixing dry powder of a multi-component concrete composite repair mortar with water. The content of each component in the dry powder of multi-component concrete composite repair mortar is calculated in parts by weight:

[0013] Portland cement 24.00

[0014] Sulphoaluminate cement 7.00

[0015] Ash Calcium 1.50

[0016] Anhydrite 2.50

[0017] Quartz sand 43.81

[0018] Ultrafine fly ash 15.00

[0019] Silica fume 5.00

[0020] Plastic expansion agent 0.01

[0021] Water reducer 0.20

[0022] Redispersible latex powder 0.80

[0023] Lithium carbonate 0.05

[0024] Defoamer 0.10

[0025] Stable thickener 0.03

[0026] Mix the above materials evenly to obtain a multi-component concrete composite repair mortar dry powder, mix it with water at a ratio of 0.13 to the water-material ratio, and use a mixer to mix and stir for 3-5 minutes to make a multi-component c...

Embodiment 2

[0027] Embodiment 2: The multi-component concrete composite repair mortar of the present invention is prepared by mixing dry powder of a multi-component concrete composite repair mortar with water. The content of each component in a multi-component concrete composite repair mortar dry powder is calculated in parts by weight:

[0028] Portland cement 22.00

[0029] High alumina cement 8.00

[0030] Anhydrite 8.00

[0031] Quartz sand 39.67

[0032] heavy calcium 20.00

[0033] Polycarboxylate superplasticizer 0.30

[0034] Redispersible latex powder 1.00

[0035] Stable thickener 0.03

[0036] Tartaric acid 0.40

[0037] Ca(OH)2 0.50

[0038] Defoamer 0.10

[0039] Mix the above materials evenly to obtain a multi-component concrete composite repair mortar dry powder, mix it with water at a ratio of 0.14 to the water-material ratio, and use a mixer to mix and stir for 3-5 minutes to make a multi-component concrete composite repair mortar .

[0040] Table 1 is a kind o...

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Abstract

The invention belongs to the technical field of prefabricated building application, and particularly discloses multi-component concrete composite repair mortar, which is prepared from the following multiple mixtures according to a certain proportion: a cementing material, a mineral admixture, a plastic expanding agent and a functional additive; when multi-component concrete composite repair mortaris prepared from dry powder composed of the cementing material, the mineral admixture, the plastic expanding agent and the functional additive, the multi-component concrete composite repair mortar isprepared by stirring the dry powder and water according to the ratio of 0.11-0.16. The multi-component concrete composite repair mortar disclosed by the invention has the beneficial effects of good fluidity, strong self-compaction, high early strength, micro-expansion in volume, no collapse in later strength and good durability, and has the advantages of quick setting, quick hardening and strongconstruction adaptability.

Description

technical field [0001] The invention belongs to the technical field of application of building materials, and in particular relates to a multi-component concrete composite repair mortar. Background technique [0002] Since the invention of Portland cement for more than 100 years, cement and concrete materials have been widely used in various buildings, and they are currently and will be the most widely used building materials for a long time to come. Ordinary concrete prepared with Portland cement has low cost, high strength, wide adaptability, and good durability. It has been widely used in the fields of indoor and outdoor floors and decorative floors of industrial and civil buildings; The surface aging of the floor and cracking caused by various reasons are relatively common, which requires rapid repair of cracks, sanding, surface aging and other defects in the old concrete floor to restore the use function of the floor; However, the construction, condensation and curing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/60
CPCC04B28/06C04B2111/60C04B2201/50C04B22/00C04B14/06C04B14/043C04B18/08C04B18/146C04B22/143C04B22/10C04B24/24C04B2103/50C04B2103/44C04B2103/302
Inventor 赵柏林陈现通韦金铃
Owner 江苏智信达建筑科技有限公司
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