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High-durability geopolymer concrete foundation

A geopolymer and durability technology, applied in the field of high-durability geopolymer concrete foundation, can solve the problems of limited synthesis speed and low strength, and achieve the effect of increasing mechanical strength

Inactive Publication Date: 2017-05-10
ZHEJIANG COLLEGE OF CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If fly ash is used to replace metakaolin, the synthesis speed is limited and the strength is also low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A high-durability ground polymer concrete foundation, which is made up of the following raw materials in parts by weight: 250 parts of high-calcium fly ash; 70 parts of steel slag; 30 parts of heavy calcium; 30 parts of zeolite powder; 580 parts of sand; 600 parts of melon rice; 560 parts of gravel; 35 parts of water glass; 180 parts of water.

Embodiment 2

[0017] A high-durability geopolymer concrete foundation, which is composed of the following raw materials in parts by weight: 265 parts of high-calcium fly ash; 20 parts of carbide slag; 10 parts of alkali slag; 50 parts of slag; 30 parts of zeolite powder; 40 parts of light calcium; 600 parts of river sand with a modulus of 2.5; 200 parts of small melon rice; 950 parts of gravel; 38 parts of water glass; 190 parts of water.

Embodiment 3

[0019] A high-durability geopolymer concrete foundation, which is composed of the following raw materials in parts by weight: 270 parts of high-calcium fly ash; 20 parts of phosphorus slag; 50 parts of slag; 50 parts of heavy calcium; 15 parts of hollow microspheres ; 595 parts of river sand with a modulus of 2.4; 300 parts of small melon rice; 850 parts of gravel; 40 parts of water glass; 195 parts of water.

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PUM

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Abstract

The invention relates to a high-durability geopolymer concrete foundation. The high-durability geopolymer concrete foundation comprises, by weight, 200-277 parts of fly ash, 55-92 parts of smelt slag, 35-70 parts of ultrafine powder, 570-600 parts of fine aggregate, 1100-1180 parts of coarse aggregate, 30-40 parts of water glass and 150-200 parts of water. The high-durability geopolymer concrete foundation has the advantages that the high-durability geopolymer concrete foundation does not need to be compounded and used with water reducing agents, and geopolymer gelation materials which are mixtures are constructed from the fly ash, the smelt slag and the water glass and have high-durability characteristics of erosion resistance and high and low temperature resistance owing to characteristics of geopolymers; coordination and auxiliary adjustment effects can be realized by the ultrafine powder for the water retention, the wrapping property and the cohesiveness of the geopolymer concrete mixtures, and certain self-curing effects further can be realized by porous structures of the ultrafine powder; improvement effects can be realized by the smelt slag for the compactness and the mechanical strength of hardened concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-durability polymer concrete foundation. Background technique [0002] International research on geopolymer materials began in the 1980s. Usually metakaolin is used as the main raw material, and it is synthesized at about 100°C through the action of an alkaline activator. If fly ash is used to replace metakaolin, the synthesis speed is limited and the strength is also low. The reason is how to ensure the high activity of Si-Al materials, ensure that the powder can quickly dissolve Si and Al monomers that can move freely, and the dissolved monomers are restructured and organized in alkaline solution. constructed from AlO 4 and SiO 4 The tetrahedral structural unit is an inorganic polymer aluminosilicate cross-linked hydration product with a three-dimensional network structure, which is coagulated and hardened. [0003] Foundation treatment generally refers to...

Claims

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Application Information

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IPC IPC(8): C04B28/26
CPCC04B28/006C04B18/08C04B18/142C04B14/28C04B14/047C04B14/068C04B18/12C04B14/02C04B18/0481C04B18/141C04B20/002Y02P40/10
Inventor 陈树东丁天庭李启华蒋学柯凯俞建锋李淼晨黄茂林
Owner ZHEJIANG COLLEGE OF CONSTR