High-strength compound cement aeolian mortar

A technology of composite cement and aeolian sand, which is applied in the field of desert aeolian sand, can solve the problems that cannot completely solve the application problems of aeolian sand, and achieve the effects of reducing dry shrinkage of mortar, saving resources, and reducing costs

Active Publication Date: 2018-06-15
内蒙古自治区水利水电勘测设计院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that most of the domestic research on aeolian sand is limited to partial replacement of aggregates, which cannot completely solve the application problem of aeolian sand in actual engineering.

Method used

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  • High-strength compound cement aeolian mortar
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  • High-strength compound cement aeolian mortar

Examples

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Effect test

Embodiment 1

[0026] A kind of high-strength composite cement aeolian mortar, its weight part is composed of: 100 parts of aeolian sand, 33.3 parts of cement, 6.7 parts of fly ash, 16 parts of water, 4 parts of polycarboxylate water reducer, 2 parts of melamine water reducer , 400 viscosity cellulose ether 0.5 parts, K12 0.5 parts.

Embodiment 2

[0028] A kind of high-strength composite cement aeolian mortar, its parts by weight consist of: 100 parts of aeolian sand, 36.7 parts of cement, 18.3 parts of fly ash, 27.5 parts of water, 11.7 parts of polycarboxylate water reducer, 2.3 parts of melamine water reducer , 2 parts of 400 viscosity cellulose ether, K126 parts.

Embodiment 3

[0030]A high-strength composite cement aeolian mortar, the glue-sand ratio (the weight ratio of cementitious material and wind-blown sand) is 0.5, the water-cement ratio (the weight ratio of water and cementitious material) is 0.4, and its parts by weight consist of: 100 parts of accumulated sand, 36 parts of cement, 14 parts of fly ash, 20 parts of water, 8 parts of polycarboxylate superplasticizer, 2 parts of melamine superplasticizer, 1 part of 400 viscosity cellulose ether, 5 parts of K12.

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Abstract

The invention relates to desert aeolian sand and in particular relates to a modified high-strength compound cement aeolian mortar product. The modified high-strength compound cement aeolian mortar provided by the invention is prepared from the following components in parts by weight: 100 parts of aeolian sand, 40 to 55 parts of a gel material, 16 to 27.5 parts of water, 6 to 14 parts of a water reducing agent, 0.5 to 2 parts of a water retaining agent and 0.5 to 6 parts of an air entraining agent, wherein the water-gel ratio is 0.4 to 0.5. The high-strength compound cement aeolian sand mortarprovided by the invention takes aeolian sand in the Alxa region as aggregate, Mengxi cement of Inner Mongolia and local abundant fly ash resources as the gel material and a novel additive as a modifying agent; the sand mortar has excellent working performance and has good durability, freezing and thawing resistance, anti-permeability and shrinkage performance; the dosage of cement is less and thecost is low; construction requirements can be completely met.

Description

technical field [0001] The invention relates to desert aeolian sand, in particular to a modified high-strength composite cement aeolian mortar product. Background technique [0002] my country is in the stage of large-scale civil engineering infrastructure construction. Cement-based concrete is used as the most important building material because of its superior performance. It is widely used in civil engineering, highways, water conservancy, shipbuilding, machinery industry, marine development, geothermal engineering, etc. . According to statistics, in 2016, the annual concrete consumption in the world was about 10 billion tons, and the concrete consumption in my country accounted for more than 60% of the total concrete consumption in the world. With the increasing use of concrete year by year, the lack of concrete raw material resources has also become a very serious social problem. In addition, due to the serious uneven distribution of medium and coarse sand resources in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B18/08C04B24/383C04B2103/302C04B2103/304C04B14/068
Inventor 庞文台樊忠成张军军孙铁军罗新燕陈秀荣宋利春单威梁缘赵宏涛邓有伟
Owner 内蒙古自治区水利水电勘测设计院有限公司
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