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A cement-based permeable crystalline building waterproof material

A technology of osmotic crystallization and building waterproofing, which is applied in the field of building materials, can solve the problems of poor waterproof durability, high brittleness of waterproof materials, and poor crack resistance, and achieve high impermeability pressure, strong self-healing, and high compressive strength.

Active Publication Date: 2016-08-24
宝武环科(湛江)资源循环利用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rigid waterproofing mainly uses mortar, concrete or mortar or concrete with admixtures, but this kind of waterproofing material is brittle and has the characteristics of poor crack resistance; flexible waterproofing uses flexible waterproofing materials, mainly including various This kind of waterproof coiled material, waterproof coating and sealing material, etc., but the durability of this kind of flexible waterproof is poor, it is easy to peel off from the base surface to produce two layers of skin, and the cost is high

Method used

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  • A cement-based permeable crystalline building waterproof material
  • A cement-based permeable crystalline building waterproof material
  • A cement-based permeable crystalline building waterproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Raw material ratio (parts by weight)

[0037] Cement: 100

[0038] Quartz sand: 70, the weight ratio of coarse sand and fine sand is 2:1

[0039] Ultra-fine granulated blast furnace slag powder: 60

[0040] Aluminum Potassium Sulfate: 3.2

[0041] Tartaric acid: 0.8

[0042] Calcium hydroxide: 3.5

[0043] Sodium carbonate: 3.4

[0044] Citric acid: 0.1

[0045] Other additives: 0.6, the weight ratio of defoamer and dispersant is 1:3.

Embodiment 2

[0047] Raw material ratio (parts by weight)

[0048] Cement: 100

[0049] Quartz sand: 90, the weight ratio of coarse sand and fine sand is 2.5:1

[0050] Ultra-fine granulated blast furnace slag powder: 78

[0051] Aluminum Potassium Sulfate: 4.5

[0052] Maleic acid: 0.9

[0053] Calcium hydroxide: 3.9

[0054] Sodium silicate: 4.0

[0055] Retarder: 0.15

[0056] Other additives: 0.8, the weight ratio of defoamer and dispersant is 1:2.

Embodiment 3

[0058] Raw material ratio (parts by weight)

[0059] Cement: 100

[0060] Quartz sand: 100, the weight ratio of coarse sand and fine sand is 3:1

[0061] Ultra-fine granulated blast furnace slag powder: 85

[0062] Aluminum Potassium Sulfate: 5.4

[0063] Maleic acid: 1.1

[0064] Calcium chloride: 4.4

[0065] Sodium carbonate: 5.2

[0066] Citric acid: 0.18

[0067] Other additives: 1.0, the weight ratio of defoamer and dispersant is 1:1.

[0068] The test results of the above three embodiments are compared with the requirements of GB18445-2012, as shown in Table 1:

[0069] Table 1 Comparison table of test results

[0070]

[0071] It can be seen from the comparison table of test results that the compressive strength and impermeability pressure of the present invention are far higher than the standard requirements, and it is a very excellent waterproof material.

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Abstract

The invention belongs to the technical field of building materials and particularly relates to a cementitious capillary crystalline waterproofing building material. The cementitious capillary crystalline waterproofing building material comprises the following components in parts by weight: 100 parts of cement, 65-110 parts of silica sand, 50-90 parts of a mineral admixture, 3-6 parts of an activator, 0.6-1.2 parts of a chelating agent, 3-5 parts of a calcium ion compensator, 3-6 parts of a capillary crystalline, 0.08-0.2 part of a retarder, and 0.5-1.0 part of other additives, wherein the other additives are the mixture of a defoamer and a dispersant, and the weight ratio of the defoamer to the dispersant in the mixture is 1:(1-3). The cementitious capillary crystalline waterproofing building material uses superfine slag powder as a mineral admixture, the silica fume is completely replaced, part of the cement is replaced, and the manufacturing cost is lowered; the waterproof material is relatively high in activity, the painted waterproof material further has a dense structure, and the cementitious capillary crystalline waterproofing building material has the characteristics of high wear-resisting property, high anti-permeability pressure, strong self-healing ability and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a cement-based permeable crystalline building waterproof material. Background technique [0002] With the rapid development of the economy, the dwindling land resources, and the continuous improvement of living conditions, high-rise buildings and high-quality buildings are an inevitable trend; on the other hand, subways and tunnel projects are increasing, and many second-tier cities have also built subways. ranks. Therefore, the quality of building waterproof materials plays a vital role in the quality of these construction projects. It is related to the use value, use conditions and sanitary conditions of buildings, and affects people's production activities and quality of work and life. [0003] Building waterproof materials are divided into rigid waterproof and flexible waterproof according to the principle and appearance. Rigid waterproofing mainly uses mortar, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/14C04B41/50
CPCY02W30/91
Inventor 赵玉静韩建国陈彩云康明鲁海涛俞瑾刘宾
Owner 宝武环科(湛江)资源循环利用有限公司