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High-durability waterproof anti-cracking mortar

A technology of waterproof mortar and anti-crack mortar, which is applied in the field of building energy-saving materials, can solve the problems that the bond strength and waterproofness cannot be maintained for a long time, and the durability is not good, and achieve high bond strength and freeze-thaw durability , The effect of prolonging the life of the insulation system

Inactive Publication Date: 2015-03-04
安唛杰节能建材科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mortar has good bonding strength, water resistance and anti-cracking effect, but due to the fatty acid waterproofing agent used, its good bonding strength and water resistance cannot be maintained for a long time, and the durability is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A waterproof and anti-cracking mortar with good durability, its components and proportions (percentage by weight) are: 35% cement, 57% sand, 5% fly ash, 1% polymer latex powder, 0.3% waterproofing agent, modified Sexual fiber 0.4%, auxiliary admixture 1.3%. According to the water-cement ratio of 0.22:1, the fresh mortar was prepared by on-site mixing, and two batches were formed. One batch was cured for 28 days to perform various performance tests, and the other batch continued to be cured for half a year before various performance tests were performed. The results are shown in Table 1. Show:

[0026]

Embodiment 2

[0028] A waterproof and anti-cracking mortar with good durability, its components and proportions (percentage by weight) are: 40% of cement, 48% of sand, 8% of fly ash, 1.7% of polymer latex powder, 0.6% of waterproofing agent, modified Sexual fiber 0.6%, auxiliary admixture 1.1%. According to the water-cement ratio of 0.22:1, freshly mixed mortar was prepared by on-site mixing, and two batches were formed. One batch was cured for 28 days to perform various performance tests, and the other batch continued to be cured for half a year before various performance tests were performed. The results are shown in Table 2. Show:

[0029]

[0030]

Embodiment 3

[0032] A waterproof and anti-cracking mortar with good durability, its components and proportions (percentage by weight) are: 50% of cement, 37% of sand, 9% of fly ash, 2.1% of polymer latex powder, 0.8% of waterproofing agent, modified Sexual fiber 0.8%, auxiliary admixture 0.3%. According to the water-cement ratio of 0.22:1, freshly mixed mortar was prepared by on-site mixing, and two batches were formed. One batch was cured for 28 days to perform various performance tests, and the other batch continued to be cured for half a year before various performance tests were performed. The results are shown in Table 3. Show:

[0033]

[0034] It can be seen from the above examples that the performance indicators of the mortar prepared by the present invention exceed the requirements of relevant standards after 28 days of curing and after half a year of curing, and the mortar has excellent water resistance, durability and flexible gradient. Moreover, the production and construct...

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Abstract

The invention belongs to the technical field of architectural energy-saving materials, and particularly relates to a high-durability waterproof anti-cracking mortar. The high-durability waterproof anti-cracking mortar is composed of the following components in percentage by mass: 32-55% of cement, 36-60% of sand, 3-12% of fly ash, 0.5-3% of polymer latex powder, 0.1-1% of waterproofing agent, 0.2-1% of modified fiber and 0.5-1.6% of auxiliary additive. The high-durability waterproof anti-cracking mortar is applicable to external wall anti-cracking layers and waterproof layers of multiple insulation systems. The product has the advantages of convenient production and construction process, high tensile and binding strength, low ratio of bending-compressive strength and low permeability. After half a year, the test proves that the product still has excellent waterproofness and crack resistance, and thus, has outstanding durability.

Description

technical field [0001] The invention belongs to the technical field of building energy-saving materials, in particular to a waterproof and crack-resistant mortar with good durability. Background technique [0002] With the continuous improvement of energy saving and environmental protection requirements, external wall thermal insulation as an important energy-saving technology of residential buildings has been greatly developed, and the matching anti-cracking mortar has also become the focus of people's research. At present, the external wall insulation system mainly adopts polymer insulation mortar, benzene board or polyurethane insulation and other systems. Among them, the plastering anti-cracking mortar matched with the polymer thermal insulation mortar system and the external wall thermal insulation system has also become the focus of people's research. Due to the large changes in the ambient temperature and humidity of the external wall insulation system, problems such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
Inventor 高扬成燕燕
Owner 安唛杰节能建材科技(上海)有限公司
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