Reinforced anti-split agent for materials such as lime and coal ash

A technology for enhancing anti-cracking agent and fly ash, which is applied in the field of enhanced anti-cracking agent for lime and fly ash materials, can solve the problems of low early strength, shrinkage cracking, etc., achieves obvious strength, reduced construction cost and good economy effect of benefit

Inactive Publication Date: 2009-04-08
HUBEI GEZHOUBA TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a reinforced anti-cracking agent for lime and fly ash materials, which can solve the problems of low early strength and shrinkage cracking of lime and fly ash materials

Method used

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  • Reinforced anti-split agent for materials such as lime and coal ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 65 parts of silicate mineral powder, 20 parts of gypsum, and 15 parts of potassium sulfate, and mix them evenly.

Embodiment 2

[0024] Take 55 parts of silicate mineral powder, 30 parts of phosphogypsum, and 15 parts of sodium sulfate, and mix them evenly.

Embodiment 3

[0026] Take 55 parts of silicate mineral powder, 30 parts of gypsum, and 15 parts of sodium sulfate, and mix them evenly.

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Abstract

The invention provides a reinforcing anti-crack agent for lime and fly ash materials, which comprises silicate mineral powder, gypsum or chemical engineering waste residue phosphogypsum and an alkali metal substance containing SO3, wherein the tricalcium silicate content of the silicate mineral powder is more than 55 percent; for the lime and fly ash materials or lime and fly ash aggregates, the early strength is quite low, the anti-crack performance is poorer; after doping the reinforcing anti-crack agent, the early strength of the lime and fly ash materials or the lime and fly ash aggregates is obviously improved, and other performances are also improved, and particularly the anti-crack performance is greatly improved, thereby effectively solving the problem that the road surface is easy to crack; and the industrial waste residue and acetylene residue are used to replace lime, and the poor-quality fly ash replaces the fly ash with second-level or higher level, thereby obviously lowering the construction cost and obtaining good economic benefits.

Description

technical field [0001] The invention relates to a lime and fly ash material used as the subbase and base material improvement of road surfaces of various grades, in particular to an enhanced anti-cracking agent for lime and fly ash materials. Background technique [0002] Lime and fly ash materials are used as the subbase and base course of road pavements of various grades. It has long operating time, high mid-late strength and rigidity, high board performance, high road bearing capacity, and good durability. Low cost, good for environmental protection, etc., but this kind of material has low early strength and large shrinkage, which is easy to cause early cracking of the road surface, resulting in certain influence and restrictions on its use. Contents of the invention [0003] The purpose of the present invention is to provide a kind of reinforced anti-cracking agent of lime and fly ash materials, which can solve the problems of low early strength and shrinkage cracking ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/14C04B14/04
Inventor 宋拥军谭恺炎程润喜陈志远曾伟陈军琪
Owner HUBEI GEZHOUBA TESTING
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