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Frost crack preventive pavement construction material and preparation method

A technology of anti-freeze cracking and raw materials, which is applied in the direction of roads, roads, pavement details, etc., can solve the problems of large-sized cracks and icing, and achieve the effect of small particle size and large specific surface area

Inactive Publication Date: 2016-06-01
LIAOCHENG YELLOW RIVER ENG BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(b) It is difficult to find large-scale equipment on site to detect large-scale pavement, making large-scale cracks freeze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A processing method for antifreeze cracked pavement construction materials, comprising the steps of:

[0017] Among the construction materials of the present invention, 65kg of cement, 12kg of quartz weathered sand, 28kg of red mud, 20kg of quicklime, 1.0kg of pyrite cinder powder, 7kg of gypsum, 18kg of rock cracking agent, 4kg of inhibitor and 12kg of water reducing agent; The dry material component of anti-freeze crack pavement construction materials also includes water, and the mass ratio of water to dry material is 0.58:1. The gypsum is a mixture of β-type hemihydrate gypsum and phosphogypsum in a mass ratio of 1:8. The inhibitor is a mixture of benzenesulfonic acid and sodium peroxide at a mass ratio of 7:2. The water reducing agent is polyurethane.

[0018] The specific surface area of ​​the quartz weathered sand after ball milling is 550m 2 / kg; the specific surface area of ​​quicklime after ball milling is 800m 2 / kg; The specific surface area of ​​cement a...

Embodiment 2

[0022] A processing method for antifreeze cracked pavement construction materials, comprising the steps of:

[0023] The material includes the following raw materials by weight: 75kg of cement, 20kg of quartz weathered sand, 33kg of red mud, 28 parts of quicklime, 0.9kg of pyrite slag powder, 6.6kg of gypsum, 14kg of stone cracking agent, 3.2kg of inhibitor and water reducing agent. The agent is 8.8kg; wherein, the dry material component of the antifreeze crack pavement construction material also includes water, and the mass ratio of water to dry material is 0.55:1. The gypsum is a mixture of β-type hemihydrate gypsum and phosphogypsum in a mass ratio of 1:6.5. The inhibitor is a mixture of citric acid and hydrogen peroxide in a mass ratio of 7.5:2.2. The water reducing agent is any one of lignosulfonates.

[0024] The specific surface area of ​​the weathered quartz sand after ball milling is 520m 2 / kg; the specific surface area of ​​quicklime after ball milling is 790m 2...

Embodiment 3

[0028] A processing method for antifreeze cracked pavement construction materials, comprising the steps of:

[0029] The material includes the following raw materials by weight: 64 parts of cement, 12.5 parts of quartz weathered sand, 26 kg of red mud, 16.8 parts of quicklime, 1.2 parts of pyrite slag powder, 8.5 parts of gypsum, 22 parts of stone cracking agent, and 4.3 parts of inhibitor and 14 parts of water reducing agent; wherein, the dry material component of the antifreeze crack pavement construction material also includes water, and the mass ratio of water to dry material is 0.62:1. The gypsum is a mixture of β-type hemihydrate gypsum and phosphogypsum in a mass ratio of 1:8.9. The inhibitor is a mixture of benzenesulfonic acid and hydrogen peroxide in a mass ratio of 8:1.8. The water reducing agent is any one of lignosulfonates.

[0030] The specific surface area of ​​the weathered quartz sand after ball milling is 540m 2 / kg; the specific surface area of ​​quicklim...

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Abstract

The invention provides a frost crack preventive pavement construction material, comprising the following materials according to parts by weight: cement, weathered quartz sand, quick lime, aluminum paste, gypsum, a stone cracking agent, an inhibitor and a water reducing agent, wherein dry components of this material further include water. The specific preparing steps include: mixing the weathered quartz sand and the gypsum, conveying a mixture to a ball mill, adding water, and ball milling to obtain pulp; crushing and ball milling to the quick lime to obtain quick lime powder; mixing the water and the aluminum paste according to a mass ratio of 8-10:1, and stirring to obtain aluminum slurry; adding the cement, the quick lime powder, the pulp, the stone cracking agent and the water into a stirring tank, mixing and stirring, heating to 40-50 DEG C, adding the aluminum slurry into the stirring tank, continuing to stir, standing in a pre-curing room at room temperature of 40-50 DEG C, and after slurry coagulates, controlling expansion rate of coagulum to 12-15% so as to finish the preparation of this material. This material of the invention is easy to obtain and low in price, the process is simple, and the material is readily prepared for use.

Description

technical field [0001] The invention provides a construction material for antifreezing and cracking pavement and a preparation method thereof, which is applied to roadbed materials to prevent pavement cracking in winter. Background technique [0002] In the cold winter, when the air temperature is often below minus 20 degrees, the main reasons for the cracking of the road surface are: (a) The problem of water storage in large cracks is not easy to solve, so that the road surface is often in a frozen state. (b) It is difficult to find large-scale equipment on site to detect large-scale pavement, so that large-scale cracks freeze. In terms of road surface construction, the optimization of roadbed materials to prevent cracking of the road surface is an urgent problem to be solved. Contents of the invention [0003] On the basis of the above problems, the present invention provides a construction material for antifreezing and cracking pavement, which comprises the following r...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B28/143C04B2111/0075C04B2111/20C04B2111/343C04B2111/76E01C7/142E01C11/245C04B14/06C04B18/0409C04B22/06C04B18/141C04B22/143C04B22/144C04B2103/0068C04B2103/302C04B24/20C04B22/068C04B24/282C04B24/06C04B24/18C04B14/068C04B22/064C04B18/0481C04B7/00C04B11/00
Inventor 王伟郭蕾汤文君张继荣赵兴光张春元王春英朱晓峰陈霞林素婷赵阳汤淼肖芳张婷婷
Owner LIAOCHENG YELLOW RIVER ENG BUREAU
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