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Cement anti-cracking modifier

An anti-cracking modifier and cement technology, applied in the field of cement anti-cracking modifier, can solve the problems of no frost resistance, low cohesion, cement hardening, etc., and achieve the effect of low cost and improved performance

Inactive Publication Date: 2015-05-20
QINGDAO DESHENGTAI CONSTR INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a cement anti-cracking modifier, which has low cost and better solution Problems such as hardening of cement, poor waterproofness, low adhesion, no wear resistance, and no frost resistance

Method used

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Examples

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Effect test

Embodiment 1

[0010] The present invention is a cement crack resistance modifier, which is made of the following raw materials in parts by weight:

[0011] 3.5 parts of sodium molybdate, 2.6 parts of coconut oil diethanolamide, 8 parts of deionized water, 3.8 parts of calcium lignosulfonate, 1.9 parts of lime powder, 1.3 parts of polyisobutylene, styrene-isoprene-styrene copolymer 2.1 parts and 1.7 parts of dodecyltrimethylammonium chloride.

Embodiment 2

[0013] The present invention is a cement crack resistance modifier, which is made of the following raw materials in parts by weight:

[0014] 1.5 parts of sodium molybdate, 2.4 parts of coconut oil diethanolamide, 5 parts of deionized water, 2.7 parts of calcium lignosulfonate, 1.2 parts of lime powder, 0.5 parts of polyisobutylene, styrene-isoprene-styrene copolymer 1 part and 1.5 parts of dodecyltrimethylammonium chloride.

Embodiment 3

[0016] The present invention is a cement crack resistance modifier, which is made of the following raw materials in parts by weight:

[0017] 4.5 parts of sodium molybdate, 3.8 parts of coconut oil diethanolamide, 10 parts of deionized water, 4.4 parts of calcium lignosulfonate, 2.6 parts of lime powder, 1.6 parts of polyisobutylene, styrene-isoprene-styrene copolymer 2.3 parts and 2.2 parts of dodecyltrimethylammonium chloride.

[0018] Compared with the existing cement modifiers, the present invention has low cost and better solves the technical problems of cement hardening, poor water resistance, low cohesive force, non-abrasion resistance, non-freezing resistance and other technical problems; After adding the modifier of the present invention to cement, the above-mentioned properties of ordinary cement are greatly improved.

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PUM

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Abstract

The invention discloses a cement anti-cracking modifier. The cement anti-cracking modifier is prepared from following raw materials, by weight, 1.5 to 4.5 parts of sodium molybdate, 2.4 to 3.8 parts of cocomut oil die thanolamide, 5 to 10 parts of deionized water, 2.7 to 4.4 parts of calcium lignosulphonate, 1.2 to 2.6 parts of lime powder, 0.5 to 1.6 parts of polyisobutylene, 1 to 2.3 parts of styrene-isoprene- styrene copolymer, and 1.5 to 2.2 parts of dodecyl trimethyl ammonium chloride. The cement anti-cracking modifier is low in cost, and is capable of solving technical problems such as cement hardening, poor water resistance, low adhesion stress, low wear resistance, and poor frost resistance; and it is confirmed by a large amount of experiments that performance of common cement can be improved greatly after adding of the cement anti-cracking modifier into common cement.

Description

technical field [0001] The invention relates to a cement anti-crack modifier, which belongs to the field of building materials. Background technique [0002] The cement currently used in construction is prone to hardening, mainly due to the condensation of calcium hydroxide, calcium silicate and water. Such cement is prone to cracking, which in turn leads to low tensile strength and low toughness of cement. In order to solve this problem, it is generally necessary to add a modifier to this type of cement to improve the hardening phenomenon of the cement. However, some ordinary cements also have defects such as poor water resistance, low cohesive force, no wear resistance, and no frost resistance while being easy to harden. Currently there is no effective way to solve these problems. Contents of the invention [0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a cement anti-cracking modifier, w...

Claims

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Application Information

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IPC IPC(8): C04B24/26
Inventor 王朝
Owner QINGDAO DESHENGTAI CONSTR INSTALLATION ENG
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