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Heavyweight concrete

A heavy concrete, apparent density technology, applied in the field of concrete materials, can solve the problems of large resistance, large density deviation, uneven solid density, etc., and achieve the effect of not easy to segregate and uniform solid density

Active Publication Date: 2017-11-03
北京城建亚泰金砼混凝土有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For a long time, it has been generally believed that heavy concrete has a high density and produces high resistance, making it difficult to carry out pumping construction; in addition, even if heavy concrete is pumped for construction, if its slump is 100-180mm like ordinary concrete pumping, Due to the segregation and delamination caused by vibration, the density deviation is large, resulting in the uneven density of the solid body after the heavy concrete is formed.

Method used

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Embodiment Construction

[0020] Hereinafter, the present invention will be further described in detail with reference to the embodiments. It should be understood that the preparation methods described in the examples of the present invention are only used to illustrate the present invention, not to limit the present invention. Simple improvements to the preparation method of the present invention under the concept of the present invention fall within the scope of protection of the present invention. .

[0021] Table 1 Source of raw materials

[0022] raw material

Manufacturer

cement

Hebei Yanxin Cement Factory

sand

Hebei Laishui Sandstone Factory

gravel

Beijing Yulin Lime Factory

Fly ash

Sanhe Xianghe Fly Ash Processing Plant

Mineral powder

Sanhe Xingda Kaiyuan Building Material Co., Ltd.

Polycarboxylic acid water reducer

Beijing Ruili Admixture Factory

3-Nitrophthalimide

Bailingwei Technology Co., Ltd.

Curcumin

Beijing Xinsaiwei Chemical Technology Co., Ltd.

Steel slag

Beij...

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Abstract

The invention relates to heavyweight concrete, technically characterized be being made from 130-135 parts of cement, 880-885 parts of sand, 495-500 parts of crushed stone, 615-620 parts of steel slag, 105-108 parts of fly ash, 90-93 parts of mineral powder, 5.2-6.0 parts of an admixture, and 170-180 parts of water, wherein the admixture is composed of a polycarboxylate superplasticizer, 3-nitrophthalimide and curcumin. The heavyweight concrete has the advantages that slump may reach 200 mm, the heavyweight concrete may be pumped for construction, segregation and layering rarely occur, and the heavyweight concrete has good solid density uniformity after formation.

Description

Technical field [0001] The present invention relates to the technical field of concrete materials, more specifically, it relates to a heavy concrete. Background technique [0002] Heavy concrete means that the apparent density is greater than 2600Kg / m 3 The concrete is mainly used in the bottom plate, backfill, anti-floating and radiation protection of buildings or structures. When steel slag is used as heavy aggregate, the density is generally 2600-4000Kg / m 3 , If special iron powder and iron ball steel section are used as heavy aggregate, the density can reach 5500Kg / m 3 . [0003] For a long time, people generally believed that the density of heavy concrete is high, and the resistance produced is large, and it is difficult to carry out pumping construction. In addition, even if heavy concrete is pumped for construction, its slump is 100-180mm like ordinary concrete pumping. Due to the segregation and delamination caused by vibrating, the upper and lower density deviations are l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/12C04B24/08
CPCC04B24/08C04B24/125C04B28/04C04B2201/20C04B2201/50C04B14/06C04B14/02C04B18/142C04B18/08C04B18/141C04B22/002C04B24/24
Inventor 史顺才龚建昌朱玉忠王瑞刚薛鹏
Owner 北京城建亚泰金砼混凝土有限公司
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