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Self-compaction refractory concrete

A refractory concrete and self-compacting technology, applied in the field of refractory materials, can solve the problems of poor compressive strength and long concrete construction period, and achieve the effects of shortening pouring time, improving construction efficiency and construction quality

Inactive Publication Date: 2013-01-23
YUNNAN COPPER CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a self-compacting refractory concrete, aiming to solve the problems of long construction period and poor compressive strength of existing concrete

Method used

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Embodiment

[0034] The foundation column of 2# electric furnace is 2.17m high, with 20mm pre-embedded steel plate on the top of the column, and I-beam on it. The installation accuracy requirements of the I-beams are that there should be no positive error in the elevation of the embedded steel plate at the top of the entire 101 columns, and the negative error should be controlled within 2mm. Due to the limited space of the site, mechanical means such as pumping cannot be used.

[0035] The cement, refractory aggregate, admixture and water added according to the formula ratio must be accurately measured before being put into the mixer. The measurement error should meet the following requirements. The measurement error of cement, water and admixture is within ±1%, while the refractory aggregate The measurement error is within ±2%. In this embodiment, mechanical on-site mixing is used. The mixer is thoroughly cleaned before mixing. The mixing time is set at 180 seconds. It is less than thre...

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Abstract

The invention discloses a self-compaction refractory concrete which is composed of the following ingredients according to weight percentage: 25%-35% of cement, 55%-65% of refractory aggregate, 0.03%-0.09% of water reducer and 8%-15% of water. The self-compaction refractory concrete provided by the invention can meet the requirements on mechanical properties such as compression strength and breaking strength as far as possible in a short time, the pouring time is greatly shortened, and the construction efficiency and the construction quality are improved.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a self-compacting refractory concrete. Background technique [0002] Concrete refers to the general term for engineering composite materials that use cementitious materials to cement aggregates into a whole. Generally speaking, concrete refers to the use of cement as cementitious material, sand and stone as aggregates, and water in a certain proportion. The cement concrete obtained by mixing, molding and curing is also called ordinary concrete. Concrete has the characteristics of abundant raw materials, low price, and simple production process, so its usage is increasing. At the same time, concrete has high compressive strength, good durability, and a wide range of strength grades. It is not only widely used in civil engineering, but also in shipbuilding, machinery Concrete is also an important material in marine development, geothermal engineering. [0003] However, the exi...

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Application Information

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IPC IPC(8): C04B35/66C04B28/06
Inventor 王立东丁鹏王谷丰刘锐崔宁
Owner YUNNAN COPPER CO LTD
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