Lightweight aggregate concrete and a preparation method thereof

A lightweight aggregate concrete and lightweight aggregate technology, applied in the field of concrete, can solve the problems of economic loss, frost resistance and durability of concrete structures that cannot be ignored, and the concrete structure has not reached the expected service life, so as to reduce the loss of slump , Improve the effect of frost resistance

Inactive Publication Date: 2018-10-09
北京班诺混凝土有限公司
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Problems solved by technology

In recent years, concrete buildings have been damaged to varying degrees, resulting in concrete structures not reaching the expected service life, resulting in huge economic lo

Method used

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  • Lightweight aggregate concrete and a preparation method thereof
  • Lightweight aggregate concrete and a preparation method thereof
  • Lightweight aggregate concrete and a preparation method thereof

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Embodiment

[0026] Embodiment: select for use in the present invention the ore powder of the S95 grade that buys from Tianjin Cheng Jin company; The fly ash of F (II); From the cement of the P.O42.5 that Tangshan Jidong Sanyou buys; Hebei Zunhua Sand, fineness modulus 2.6; the air-entraining agent is a compound solution of sodium α-alkenyl sulfonate and cetyltrimethylammonium chloride, among which sodium α-alkenyl sulfonate is from Xi’an Nanfeng Daily Chemical Co., Ltd. Purchased, cetyltrimethylammonium chloride was purchased from Shanghai Chemical Reagent Company; the water reducer was: isomeric decanol polyoxyethylene ether and purchased from Hai'an Petrochemical Plant, Jiangsu Province; tap water was directly used for water.

[0027] The lightweight aggregate is 800-grade shale ceramics produced by Yichang Everbright Ceramic Products Co., Ltd., with a particle size range of 4.75-20 mm, a water absorption rate of 4.5% in 1 hour, and a saturated water absorption rate of 8.7%. The apparent...

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Abstract

The invention discloses lightweight aggregate concrete and a preparation method thereof, wherein the lightweight aggregate concrete comprises, by weight, 300-400 parts of cement, 45-70 parts of mineral powder, 700-740 parts of sand, 420-470 parts of lightweight aggregate, 160-178 parts of water, 55-72 parts of fly ash, 5-9 parts of a water reducing agent, and 0.04-0.12 part of an air entraining agent. According to the present invention, with the lightweight aggregate concrete, the weight of the structure can be reduced, and the frost resistance durability of buildings built in cold regions canbe improved.

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): C04B28/02C04B111/40
CPCC04B28/02C04B2111/40C04B2201/20C04B2201/50C04B18/12C04B14/06C04B18/027C04B18/08C04B2103/302C04B2103/304C04B24/32C04B24/163C04B24/121
Inventor 隋瑞山吕天亮赵志刚张颖孙文
Owner 北京班诺混凝土有限公司
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