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Non-autoclaved pipe pile and preparation method thereof

An autoclave-free pipe pile and formula technology, which is applied to the field of high-strength concrete pipe piles in construction, can solve the problems of unsatisfactory early strength, high material cost, long maintenance time, etc. The effect of waste recycling

Inactive Publication Date: 2020-06-02
建华建材(山西)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high material cost, long curing time, unsatisfactory early strength and many other disadvantages in the realization of the existing autoclaving-free process, and propose a non-autoclaving pipe pile and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A non-autoclaved pipe pile and a preparation method thereof, comprising the following steps:

[0028] Step 1, weighing 33% fine aggregate and 32% coarse aggregate are pre-crushed or pretreated respectively to obtain a premix of fine aggregate and coarse aggregate;

[0029] Step 2, adding 0.7% admixture, 5% micropearl powder and an appropriate amount of water to the above premix, and grinding with a grinding device to obtain raw meal;

[0030] Step 3, adding the raw meal obtained in step 2 for homogenization and preheating with coal powder as the heating medium to decompose part of the raw meal;

[0031] In step 4, the preheated raw meal is heated with coal powder as the heating medium, and 410 kg of adhesive material and 70% cement are calcined at a high temperature of 1450° C. and quenched to prepare clinker.

[0032] In this embodiment, specifically: when the raw material is homogenized, the raw material conveying system from the grinding mill is connected with the e...

Embodiment

[0034] A non-autoclaved pipe pile and a preparation method thereof, comprising the following steps:

[0035] Step 1, weighing 35% fine aggregate and 36% coarse aggregate and performing pre-crushing or pretreatment respectively to obtain a premix of fine aggregate and coarse aggregate;

[0036] Step 2, adding 1.0% admixture, 12% microbead powder and appropriate amount of water to the above premix, and grinding with a grinding device to obtain raw meal;

[0037] Step 3, adding the raw meal obtained in step 2 for homogenization and preheating with coal powder as the heating medium to decompose part of the raw meal;

[0038] Step 4, using pulverized coal as the heating medium for the preheated raw meal, adding 440kg of adhesive material, calcining 90% cement at a high temperature of 1450°C and quenching to prepare clinker;

[0039] In this embodiment, specifically: when the raw material is homogenized, the raw material conveying system from the grinding mill is connected with the...

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Abstract

The invention discloses a non-autoclaved pipe pile and a preparation method thereof. The formula of the non-autoclaved pipe pile comprises 33-35% of fine aggregate, 32-36% of coarse aggregate, 0.7-1.0% of an additive, 5-12% of microbead powder and water. The content of concrete in each cubic meter of the non-autoclaved pipe pile is 410-440kg, and the content of cement is 70-90%. The formula of thenon-autoclaved pipe pile concretely comprises 34% of the fine aggregate, 35% of the coarse aggregate, 0.9% of the admixture and 8% of the microbead powder, 420 kg of the concrete and 80% of cement ineach cubic meter of non-autoclaved pipe pile, the fine aggregate is clean natural hard medium-coarse sands or artificial sands, the coarse aggregate adopts gravels or broken pebbles, and the admixture is a high-efficiency naphthalene water reducer. The microbead powder is used for realizing the non-autoclaved process, so that the objective problems of material shortage, high cost and the like aresolved, a series of defects of the traditional non-autoclaved process are overcome, and correspondingly, resources are saved for the country.

Description

technical field [0001] The invention relates to the technical field of building high-strength concrete pipe piles, in particular to a non-autoclaved pipe pile and a preparation method thereof. Background technique [0002] Under the new situation, as the country strengthens its environmental governance, the pressure on enterprises is also increasing. To ensure the healthy operation and normal operation of enterprises, the only way is to change the traditional business thinking. As far as the concrete industry is concerned, starting from 2017, it has not only been affected by ground materials, but also restricted by powder materials such as cement. If natural materials are fully utilized, it will not be able to meet the needs of manufacturing companies to a large extent. In addition, the limitation of coal burning and the promotion of natural gas will put great pressure on pipe piles and concrete enterprises that require steam curing. In the face of various pressures brough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/00025C04B14/06C04B14/02C04B2103/302C04B18/08
Inventor 杨宝鹏杨羽肖黎亮
Owner 建华建材(山西)有限公司