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Flyash-haydite concrete

A technology of fly ash ceramsite and concrete, applied in ceramic products, sustainable waste treatment, solid waste management, etc., can solve problems such as easy segregation and stratification, reduce environmental pollution, improve workability, and control vibration the effect of time

Inactive Publication Date: 2002-10-23
DAQING OILFIELD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is the problem of easy segregation and stratification when preparing fly ash ceramsite concrete

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described below:

[0008] The fly ash ceramsite concrete, including fly ash, is characterized in that: each component and the proportion by weight are as follows:

[0009] Fly ash ceramsite is 250-33 parts, and its bulk density is 900, water absorption rate is less than 8%, porosity is more than 40%, and strength is more than 10Mpa; cementing material is 17-26 parts, light and fine aggregates are 42-51 parts. The air agent accounts for 1×10 of the cementitious material -4 %, the superplasticizer accounts for 0.6% of the cementitious material and water.

[0010] At the same time of preparation, the bulk density of fly ash ceramsite is selected to be 900, water absorption 40%, and strength >10Mpa. It can produce high-strength concrete with a strength of 45Mpa and can improve the workability of fresh concrete. Adding air-entraining agent and high-efficiency water-reducing agent can greatly improve the fluidity of fresh concrete and ...

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Abstract

The present invention relates to a fly-ash ceramsite concrete, which is characterized by that its composition comprises (by weight portion) 25-33 portions of fly-ash ceramsite, 17-26 portions of cementing material, 42-51 portions of light fine aggregate, and air-guiding agent whose content is 1X10 to the minus fourth % and high-effective water-reducing agent whose content is 0.6% of cementing material and water. It can improve workability of new-stirred concrete, its strength can be up to 45 Mpa, and its durability and after-strength are also can be raised.

Description

(1) Technical field: [0001] The invention relates to a green and environment-friendly building material, which belongs to fly ash ceramsite concrete. (2) Background technology: [0002] At present, ordinary fly ash ceramsite is light, porous, and has a large water absorption capacity. When preparing fly ash ceramsite concrete, it has poor workability, is easy to segregate and delaminate, and has a large loss of slump over time. The quality of concrete after pouring construction and hardening; when the same label is used, the amount of cement is larger than that of ordinary concrete, the elastic modulus is smaller, the shrinkage and creep are larger, the tendency of shrinkage cracks in concrete components increases, and the durability decreases, so that the fly ash The application of ceramsite concrete is limited. (3) Contents of the invention: [0003] The technical problem to be solved by the present invention is the problem of easy segregation and stratification when pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04Y02W30/91C04B18/027C04B18/08C04B38/02C04B2103/302C04B14/047
Inventor 邹红霞杨柏兰赵云波王金国单文冬武晓锋
Owner DAQING OILFIELD CO LTD
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