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Cement modifier

A technology of cement modifier and parts by weight, applied in the field of cement modifier, can solve the problems of low cost, low cohesion, no wear resistance, etc., and achieve the effect of low cost and improved performance

Inactive Publication Date: 2015-04-29
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 modifier, which is low in cost and better solves the problems of cement hardening, poor waterproofness, small cohesive force, non-abrasion resistance, and Technical issues such as antifreeze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0011] 2.8 parts of magnesium alkylbenzene sulfonate, 3.3 parts of rosin resin, 3.8 parts of recycled low-density polyethylene, 2.2 parts of gypsum, 4 parts of periodate lignin, 1.3 parts of γ-mercaptopropyltrimethoxysilane and polyamide urea 2.5 parts of formaldehyde resin.

Embodiment 2

[0013] The present invention is a cement modifier made from the following raw materials in parts by weight:

[0014] 1.2 parts of magnesium alkylbenzene sulfonate, 2.5 parts of rosin resin, 3.2 parts of recycled low-density polyethylene, 1.2 parts of gypsum, 2.5 parts of periodate lignin, 0.8 parts of γ-mercaptopropyltrimethoxysilane and polyamide urea 1.2 parts of formaldehyde resin.

Embodiment 3

[0016] The present invention is a cement modifier made from the following raw materials in parts by weight:

[0017] 3.4 parts of magnesium alkylbenzene sulfonate, 5 parts of rosin resin, 4.7 parts of recycled low-density polyethylene, 2.4 parts of gypsum, 5 parts of periodate lignin, 1.6 parts of γ-mercaptopropyltrimethoxysilane and polyamide urea 3.5 parts of formaldehyde resin.

[0018] Compared with the existing cement modifiers, the modifier of the present invention has low cost and better solves the technical problems of cement hardening, poor water resistance, low cohesive force, non-abrasion resistance, and non-freezing resistance; A large number of tests have verified that after adding the modifier of the present invention to ordinary 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 modifier. The cement modifier is prepared from the following raw materials in parts by weight: 1.2-3.4 parts of magnesium alkylbenzene sulfonate, 2.5-5 parts of rosin resin, 3.2-4.7 parts of regenerated low-density polyethylene, 1.2-2.4 parts of gypsum, 2.5-5 parts of periodate lignin, 0.8-1.6 parts of gamma-mercaptopropyl trimethoxysilane and 1.2-3.5 parts of polyamide urea-formaldehyde resin. Compared with the existing cement modifiers, the modifier disclosed by the invention has the advantages that the cost is low, and the technical problems of cement hardening, poor waterproofing property, low bonding power, no wear resistance, no freezing resistance and the like are better solved; verified by a large number of tests, the properties of normal cement are greatly improved after the modifier disclosed by the invention is added into the normal cement.

Description

technical field [0001] The invention relates to a cement modifier and 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 are easy to harden and have defects such as poor water resistance, low cohesive force, no wear resistance, and no frost resistance. Currently there is no effective way to solve these problems. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a cement modifier, which is low in cost and better solves ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/34C04B24/18
Inventor 王朝
Owner QINGDAO DESHENGTAI CONSTR INSTALLATION ENG