Method for manufacturing steel pipe phosphor slag concrete member

A production method and concrete technology, applied in the direction of columns, pier columns, pillars, etc., can solve problems such as water resource and soil environmental pollution, affect plant growth, and endanger human health, so as to achieve good growth and development conditions and improve building quality , Increase the effect of bonding

Inactive Publication Date: 2018-07-27
GUIZHOU UNIV
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Problems solved by technology

[0002] Phosphorus slag is a kind of industrial waste produced when yellow phosphorus is produced by the electric furnace method. Most of them are stacked in the open air in the slag field, which not only occupies a large amount of cultivated land, but also the phosphorus and fluorine in it are gradually dissolved by rainwater and penetrate into the ground, causing pollution. Water sources, affecting plant growth, causing environmental pollution such as water resources and soil, seriously endangering human health

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  • Method for manufacturing steel pipe phosphor slag concrete member

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Embodiment 1

[0019] Example 1. A method for manufacturing a steel pipe phosphorus slag concrete member, comprising the following steps:

[0020] a. The phosphorus slag, a by-product of yellow phosphorus production, is pulverized, and its particle size meets the requirements for the production of fine aggregate and coarse aggregate concrete in the specification, and is directly used as concrete aggregate, that is, product A, to replace part of the sand and gravel;

[0021] b. Mix product A into concrete and mix well to get phosphorus slag concrete, that is product B; the amount of product A added is 30% to 60% of the weight of sand and gravel in ordinary concrete; the optimum is 50%.

[0022] c. Pour product B into a steel pipe with one end closed and wait for product B to solidify. After solidification, use high-strength mortar to grind and fill up the gaps generated when product B shrinks. After filling, close the other end of the steel pipe to obtain a semi-finished component;

[0023] ...

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Abstract

The invention discloses a method for manufacturing a steel pipe phosphorous slag concrete member. The method for manufacturing the steel pipe phosphorous slag concrete member comprises the following steps that a, phosphorus slag used as a byproduct for producing yellow phosphorus is crushed, the particle size of the phosphorus slag meets the requirements of fine aggregate and coarse aggregate concrete in a specification, and the phosphorus slag is used directly as concrete aggregate, that is to say, an A product; b, the A product is mixed into concrete for uniform mixing, phosphorous slag concrete is obtained, that is to say, a B product, and the incorporation amount of the A product is 30%-60% of the weight of sand and gravel in the concrete; c, the B product is poured into a steel pipe with a closed end until the product B solidifies, after solidification, gaps of the B product during contraction are grinded, filled and leveled up using high-strength mortar, and after filling, the other end of the steel pipe is closed to obtain a semi-finished member; and d, the semi-finished member is maintained for 28d, and a finished product is obtained.

Description

technical field [0001] The invention belongs to the technical field of building structure engineering, and in particular relates to a manufacturing method of a steel pipe phosphorus slag concrete component. Background technique [0002] Phosphorus slag is a kind of industrial waste produced when yellow phosphorus is produced by the electric furnace method. Most of them are stacked in the open air in the slag field, which not only occupies a large amount of cultivated land, but also the phosphorus and fluorine in it are gradually dissolved by rainwater and penetrate into the ground, causing pollution. Water sources affect plant growth, cause environmental pollution such as water resources and soil, and seriously endanger human health. In recent years, with the continuous development of my country's economy, more and more phosphorus products are used in people's production and life. At the same time, along with industrial production and people's life, more and more phosphorus ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
CPCE04C3/34
Inventor 吴辽刘建浩
Owner GUIZHOU UNIV
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