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Lightweight aggregate concrete and preparation method thereof

A technology of lightweight aggregate concrete and lightweight aggregate, applied in the field of concrete, can solve the problems of low compressive strength, flexural strength and tensile strength, limited application range of lightweight aggregate concrete, etc., to improve the dispersion effect and increase the strength. Effect

Active Publication Date: 2017-08-15
天津金隅混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Lightweight aggregate concrete emerged as the times require. Although lightweight aggregate concrete has a series of advantages such as light weight, good thermal insulation performance, and excellent shock resistance, but the compressive strength, flexural strength and tensile strength of most lightweight aggregate concrete The strength is low, which limits the application range of lightweight aggregate concrete

Method used

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Examples

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Comparison scheme
Effect test

Embodiment

[0028] Embodiment: select for use in the present invention the slag powder of S95 grade purchased from Tianjin Zhongye Tianguan Environmental Protection Resources Development Co., Ltd.; Tianjin Beijiang Environmental Protection Building Materials Co., Ltd. F class I grade fly ash; purchased from Tianjin Zhenxing Cement Co., Ltd. Cement with P O42.5; river sand from Zunhua, Hebei;

[0029] 6.8-12.08 parts of admixture, including 0.8-2.88 parts of carbon fiber, 5-6 parts of water reducing agent, and 1-2.2 parts of dispersant. The superplasticizer is FDN high-efficiency superplasticizer and purchased from Haian Petrochemical Plant in Jiangsu Province; the dispersant is hydroxypropyl methylcellulose and purchased from Gomez Chemical (China) Co., Ltd. Purchased from Shun Chemical Trading Co., Ltd., tap water was used directly as water.

[0030] The lightweight aggregate is 800-grade shale ceramics produced by Yichang Guangda Ceramic Products Co., Ltd., with a particle size range o...

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Abstract

The invention discloses a lightweight aggregate concrete and a preparation method thereof. The lightweight aggregate concrete comprises the following components in parts by weight: 360-400 parts of cement, 55-75 parts of ore powder, 730-760 parts of sand, 460-500 parts of lightweight aggregate, 180-195 parts of water, 75-80 parts of fly ash, 6.8-11.08 parts of an additive, the additive comprises carbon fiber, a water reducer and a dispersant, wherein the carbon fiber accounts for 0.8-2.88 parts, the water reducer accounts for 5-6 parts, and the dispersant accounts for 1-2.2 parts, and the intensity of the lightweight aggregate is increased.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a lightweight aggregate concrete and a preparation method thereof. Background technique [0002] Concrete is the most important building material in today's civil engineering, and it is also the most widely used building material. It can not only be widely used in industrial and civil buildings, hydraulic buildings and urban construction, but also can be used in various buildings for marine development, and can also be made into sleepers, electric poles, pressure pipes, underground projects, etc. [0003] However, with the development of modern civil engineering in the direction of towering, long-span, and heavy loads and the increasing demand for the construction of various new special structures, the disadvantages of ordinary concrete materials such as heavy weight, low specific strength, and poor thermal insulation performance are also becoming more and more serious. Obviously, it lim...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/02C04B14/38C04B18/02
CPCC04B20/023C04B28/04C04B2201/50C04B18/141C04B18/08C04B18/027C04B14/068C04B14/386C04B2103/302C04B24/383
Inventor 刘磊魏鹏陈军亮吴秀静
Owner 天津金隅混凝土有限公司
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