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Highway dredging mud ceramicite cement concrete and method for preparing the same

A technology of cement concrete and concrete, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of poor performance and high consumption, and achieve the effects of reducing production costs, driving comfort, and convenient operation

Inactive Publication Date: 2009-08-19
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the disadvantages of poor performance and large consumption of non-renewable resources existing in existing cement concrete and ceramsite concrete, and provides a dredging mud ceramsite cement concrete for roads and a preparation method thereof. The dredging mud ceramsite cement Concrete has better performance than existing concrete, can realize environmental protection, save resources, and reduce production costs

Method used

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  • Highway dredging mud ceramicite cement concrete and method for preparing the same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment one: each raw material is calculated by weight proportion, gets dredging mud ceramsite 167 parts, gravel 198 parts, cement 189 parts, sand 378 parts, water 68 parts, fly ash replaces cement percentage and is 10%, excess substitution coefficient is 1.6, and the powdered FDN-2 naphthalene series high-efficiency water reducer accounts for 0.8% of the total amount of cement and fly ash.

[0035] Among them, the dredging mud ceramsite satisfies the following properties: cylinder compressive strength > 4MPa, water absorption 500, particle size 5-20mm, particle shape coefficient ≤ 1.2, softening coefficient ≥ 0.85, firmness (according to Mass loss) < 5%, boiling mass loss ≤ 4%, ignition loss ≤ 4%, sulfide and sulfate content (calculated as sulfur trioxide) < 0.5%, mud content < 1.0%, organic matter content is not deep in standard colors. .

[0036] First of all, the raw materials are pretreated, mainly referring to the pre-wet treatment of dredged mud ceramsite. ...

Embodiment 2

[0041] Embodiment two: each raw material is calculated by weight proportion, gets dredging mud ceramsite 167 parts, gravel 197 parts, cement 190 parts, sand 369 parts, water 77 parts, fly ash replaces cement percentage and is 10%, excess substitution coefficient is 1.6, and the powdered FDN-2 naphthalene series high-efficiency water reducer accounts for 0.8% of the total amount of cement and fly ash.

[0042] Preparation was carried out according to the steps of Example 1, and various performance indexes of the prepared concrete were tested.

Embodiment 3

[0043]Embodiment three: each raw material is calculated by weight proportion, gets dredging mud ceramsite 163 parts, crushed stone 193 parts, cement 192 parts, sand 369 parts, water 82 parts, fly ash replaces cement percentage and is 10%, excess substitution coefficient is 1.6, and the powdered FDN-2 naphthalene series high-efficiency water reducer accounts for 0.8% of the total amount of cement and fly ash.

[0044] Preparation was carried out according to the steps of Example 1, and various performance indexes of the prepared concrete were tested.

[0045] The performance index parameters of the dredged mud ceramsite concrete prepared in the above three embodiments are shown in the table below.

[0046] Performance

[0047] It can be seen from the performance indicators of the concrete in the above table that the dredged mud ceramsite cement concrete has excellent performance, fully meets the road performance requirements, realizes waste utilization, saves natural...

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Abstract

The present invention discloses one kind of sludge haydite-cement concrete for road and its preparation process. The sludge haydite-cement concrete is mixture of sludge haydite, cement, crushed stone, sand, water and admixture in certain weight proportion. It is prepared through wetting sludge haydite and mixing the materials; and is used through spreading, vibrating and curing. The sludge haydite-cement concrete has excellent performance, environment friendship and low production cost.

Description

technical field [0001] The invention relates to a road building material, in particular to a dredging mud ceramsite cement concrete for roads and a preparation method thereof. Background technique [0002] Cement concrete is widely used in road surface course due to its high strength and good stability. However, there are some disadvantages in the cement concrete pavement: First, there are many joints in the construction of the cement concrete pavement. Cracking of concrete affects mechanical properties and durability; thirdly, the frost resistance of cement concrete is not high, especially in areas with large temperature differences, concrete is easy to crack, which affects durability; secondly, cement concrete pavement has poor sound absorption effect and high noise , the driving comfort is low; in addition, the cement concrete pavement has a large temperature shrinkage coefficient and a large temperature stress. As mentioned above, there is a need to further improve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B14/04C04B14/06
CPCC04B18/0418C04B2111/0075C04B28/02Y02W30/91C04B14/02C04B14/06C04B18/08C04B18/141C04B18/146C04B40/0067C04B2103/302C04B14/12
Inventor 焦双健杜群乐魏巍许祥顺李飞许淑云邢彦青晏卫革李志伟尹平毛国栋
Owner OCEAN UNIV OF CHINA
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