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Concrete pile and preparation method thereof

A concrete pile and concrete technology, applied in the field of concrete piles, can solve problems such as the shortage of sand resources and industrial waste residue pollution, and achieve significant social benefits, reduce environmental hazards, and reduce costs

Inactive Publication Date: 2012-06-13
JIANHUA CONSTR MATERIALS (JIANGSU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art, to provide a concrete pile made by replacing part of the river sand or river sand with industrial waste slag, so as to solve the shortage of sand resources and the pollution of industrial waste slag

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1: Production of PHC concrete pipe piles, the components of the concrete are cementitious material, sand, industrial waste residue, gravel, naphthalene series high-efficiency water reducing agent and water, wherein the cementitious material is cement; wherein, the bulk density of concrete 2500kg / m 3 , the water-binder ratio is 0.3, and the amount of gelling material is 420kg / m 3 The fineness modulus of sand is 3.0, and the sand rate is 36%; the industrial waste slag is steel slag, and its fineness modulus is 2.0, which replaces 20% natural sand; the particle size of gravel is 5-25mm, and the crushing value is 5%; the dosage of water reducing agent is 0.65% of the total gelling material.

[0020] The specific production process is as follows:

[0021] (1) First put sand, industrial waste residue, and cementitious materials into the concrete mixer to mix until uniform, then add 70-90% of the water in the entire formula, and then stir until uniform, and finall...

Embodiment 2

[0026] Embodiment 2: produce PHC concrete pipe pile, its preparation method is the same as embodiment 1, difference is: the component of described concrete is cementitious material, sand, industrial waste residue, crushed stone, polycarboxylate high-performance water reducer and Water, wherein the cementitious material is a mixture of cement and mineral powder according to 1:0.6; among them, the bulk density of concrete is 2400kg / m 3 , the water-binder ratio is 0.3, and the amount of gelling material is 300kg / m 3 The fineness modulus of sand is 3.2, and the sand ratio is 33%; the industrial waste residue is industrial tailings and mine tailings, and its fineness modulus is 0.7, which replaces 50% of natural sand; the particle size of gravel is 5~ 25mm, the crushing value is 5%; the dosage of water reducing agent is 0.3% of the total cementitious material.

Embodiment 3

[0027] Embodiment 3: Production of PHC concrete pipe piles, its preparation method is the same as in Embodiment 1, the difference is that: the components of the concrete are cementitious material, sand, industrial waste residue, gravel, polycarboxylate high-performance water reducer and water, wherein the cementitious material is a mixture of cement and ground sand according to 1:0.5; wherein, the bulk density of concrete is 2600kg / m 3 , the water-binder ratio is 0.35, and the amount of gelling material is 600kg / m 3 The fineness modulus of sand is 3.5, and the sand ratio is 40%; the industrial waste is sandblasting, and its fineness modulus is 1.0, which replaces 10% of natural sand; the particle size of gravel is 5-25mm, and the crushing value 5%; the dosage of water reducer is 0.2% of the total gelling material.

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Abstract

The invention discloses a concrete pile formed by concrete casting; the concrete comprises the components including cementing material, fine aggregate, crushed stones, water-reducing agent and water, wherein the fine aggregate is a mixture of sand and industrial waste slag, and the weight the industrial waste slag is 10 to 50% of that of the fine aggregate; the volume weight of the concrete is 2400 to 2600 kg / m<3>; the use amount of the cementing material is 300 to 600 kg / m<3>, the water-binder ratio is 0.2 to 0.4, and the sand percentage is 27 to 44%; and the weight of water-reducing agent is 10 to 50% of that of the cementing material. The invention further discloses a preparation method of the concrete pile. According to the invention, 10 to 50% of sand is replaced by industrial waste slag, moreover, the resource of the industrial waste slag is relatively ample, and the quality is relatively stable, so that under the premise of ensuring the quality of the concrete pile, through resource utilization of the waste material, not only the pollution problem is solved, but also great economic benefits and social benefits can be produced.

Description

technical field [0001] The invention relates to a concrete pile prepared by utilizing industrial waste residue, and also relates to a preparation method of the concrete pile. Background technique [0002] my country has become the world's largest market for precast concrete products. Sand is an essential component of concrete. The production of a large number of concrete products has led to an increase in the amount of sand used year by year. Long-term mining has led to the gradual depletion of natural sand resources. It is urgent to find new sand resources or sand substitutes, develop circular economy, and reduce concrete costs. [0003] At the same time, metallurgical enterprises such as iron and steel, mining industry, machinery processing industry and other enterprises have produced a large amount of industrial waste residue in the production process. The production of industrial waste not only pollutes the environment, takes up a lot of farmland and arable land, but al...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/12C04B18/14C04B18/04B28B21/66B28B21/68B28B11/24
CPCY02W30/91
Inventor 苟德胜李斌斌
Owner JIANHUA CONSTR MATERIALS (JIANGSU) CO LTD
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