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
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[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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