A large amount of blast furnace heavy slag composite sand-based permeable brick and its efficient preparation method

A technology of blast furnace heavy slag and permeable bricks, which is applied in manufacturing tools, sustainable waste treatment, solid waste management, etc., can solve the problems of limited source of raw materials, high cost, and complicated production process of pre-coated new sand, so as to alleviate the environment Effects of pollution, short hardening time, shortened setting and hardening time

Active Publication Date: 2020-05-01
CHINA FIRST METALLURGICAL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of pre-coated new sand is relatively complicated, and the original sand needs to be heated and stirred to complete the sand color change and glue coating process, which is costly
The adhesive behind uses a special resin material, and the source of raw materials is relatively limited

Method used

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  • A large amount of blast furnace heavy slag composite sand-based permeable brick and its efficient preparation method
  • A large amount of blast furnace heavy slag composite sand-based permeable brick and its efficient preparation method
  • A large amount of blast furnace heavy slag composite sand-based permeable brick and its efficient preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A large-volume heavy slag sand-based permeable brick includes a sand-based surface layer and a cement-based base layer. The material of the sand base surface layer is 200g of 20-40 mesh heavy slag superfine sand, 10.4g of 128 epoxy resin, 2.6g of aliphatic polyamine curing agent 531, 0.22g of coupling agent KH5500, and 0.2g of hardening accelerator DMP-30. Red color paste 0.1g; cement-based base material: 1mm-2mm heavy slag 200g, 3-5mm heavy slag 800g, P·O42.5 cement 174g, SAC42.5 cement 44g, polycarboxylate superplasticizer 0.11g, water 74g . After the surface layer and base layer materials were prepared, the automatic vibrating bricks were completed according to the production process. The ratio of the surface layer thickness to the base layer thickness of the prepared permeable bricks was 0.2:1. The performance parameter characterization results are shown in Table 1.

Embodiment 2

[0055] A large-volume heavy slag sand-based permeable brick includes a sand-based surface layer and a cement-based base layer. The material of the sand base surface layer is 200g of heavy slag superfine sand of 20-40 mesh, 13.3g of 128 epoxy resin, 3.3g of aliphatic polyamine curing agent 531, 0.13g of coupling agent KH5500, 0.1g of hardening accelerator DMP-30, Red color paste 0.1g; cement-based base material is 1mm-2mm heavy slag 200g, 3mm-5mm heavy slag 800g, P O52.5 cement 190g, SAC42.5 cement 48g, polycarboxylate superplasticizer 0.13g, water 79g . After the surface layer and base layer materials were prepared, the automatic vibrating bricks were completed according to the production process. The ratio of the surface layer thickness to the base layer thickness of the prepared permeable bricks was 0.2:1. The performance parameter characterization results are shown in Table 1.

Embodiment 3

[0057] A large-volume heavy slag sand-based permeable brick includes a sand-based surface layer and a cement-based base layer. The material of the sand base surface layer is 200g of heavy slag superfine sand of 20-40 mesh, 10.4g of 128 epoxy resin, 2.6g of aliphatic polyamine curing agent 593, 0.2g of coupling agent KH5500, 0.4g of hardening accelerator DMP-30, Red color paste 0.1g; cement-based base material is 150g of 1mm-2mm heavy slag, 950g of 3mm-5mm heavy slag, 153g of P·O42.5 cement, 65g of SAC42.5 cement, 0.11g of polycarboxylate superplasticizer, and 74g of water . After the surface layer and base layer materials were prepared, the automatic vibrating bricks were completed according to the production process. The ratio of the surface layer thickness to the base layer thickness of the prepared permeable bricks was 0.15:1. The performance parameter characterization results are shown in Table 1.

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Abstract

The invention relates to a high doped blast furnace heavy slag composite sand-based water-permeable brick and a preparation method thereof. The water-permeable brick is composed of a water-permeable surface layer and a water-permeable base layer. The water-permeable surface layer comprises, by mass, 150 to 200 parts of super-fine sand of heavy slag, 7 to 14 parts of epoxy resin, 2 to 4 parts of a curing agent, 0.02 to 0.4 parts of a hardening accelerator, 0.1 to 0.3 parts of a silane coupling agent and 0.02 to 0.1 parts of colorant paste. The water-permeable base layer comprises, by mass, 190 to 450 parts of ordinary Portland cement, 14 to 200 parts of sulphoaluminate cement, 1250 to 1650 parts of heavy slag, 0.1 to 0.6 parts of a water reducing agent and 90 to 160 parts of water. The high doped blast furnace heavy slag composite sand-based water-permeable brick utilizes a large amount of industrial waste blast furnace heavy slag, modified epoxy resin glue and a compound cementitious system, and has high interlaminar bonding strength, short hardening time, wear resistance and long service time.

Description

technical field [0001] The invention relates to a high-volume blast furnace heavy slag composite sand-based permeable brick and an efficient preparation method for fully automatic production thereof. Background technique [0002] Focusing on the new needs of sponge city construction, the research and application of permeable pavement bricks are in full swing. At present, the permeable brick products on the market are mainly concentrated on cement-based permeable bricks, ceramic sintered permeable bricks, and sand-based permeable bricks. The production process of ceramic permeable bricks is relatively complicated. The pressed raw bricks need to be fired at a high temperature of 1200°C for 6-12 hours, which consumes a lot of energy, low production efficiency, large investment and environmental protection, and high product costs; cement-based The production cost of permeable bricks is low, but there are problems such as low flexural strength, poor appearance texture, easy fadi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B26/14C04B18/14B28B15/00B28B3/00B28B13/02B28B11/24
CPCB28B3/00B28B11/24B28B13/02B28B15/00C04B18/142C04B26/14C04B28/06C04B2111/00284C04B2111/00612C04B2201/50C04B7/02C04B24/24C04B24/121C04B24/42C04B2103/54C04B2103/14Y02W30/91
Inventor 周紫晨张虹波曾明呙于平张冰杨胜文罗英杰陈晓伟王智
Owner CHINA FIRST METALLURGICAL GROUP
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