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Concrete with good wear resistance and preparation method thereof

A technology for wear resistance and concrete, applied in the field of concrete, can solve the problem of insignificant improvement of concrete wear resistance, and achieve the effects of improving wear resistance, bonding strength and crack resistance.

Active Publication Date: 2020-12-29
佛山市建通混凝土制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when adding fiber materials, the inventors found that the simple addition of fiber materials does not significantly improve the wear resistance of concrete, and further improvement is needed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A preparation method of concrete with good wear resistance:

[0045] Add 78kg of fly ash, 62kg of blast furnace slag, 690kg of sand, 1080kg of gravel, 5.6kg of polyvinyl alcohol and 1.4kg of para-aramid fiber into the concrete mixer, mix and stir for 4 minutes, then add 250kg of cement, continue mixing and stirring for 2 minutes, and then add 6.2 kg of water reducing agent and 122kg of water, and continue to mix and stir for 1min to obtain concrete with good wear resistance.

[0046] Wherein the length of the para-aramid fiber is 5-7mm.

Embodiment 2

[0048] A preparation method of concrete with good wear resistance:

[0049] Add 95kg of fly ash, 72kg of blast furnace slag, 665kg of sand, 1150kg of gravel, 6.9kg of polyvinyl alcohol and 2.3kg of para-aramid fiber into the concrete mixer, mix and stir for 3 minutes, then add 220kg of cement, continue mixing and stirring for 2 minutes, and then add 7.2 kg water reducer and 105kg water, continue to mix and stir for 1min to obtain concrete with good wear resistance.

[0050] Wherein the length of the para-aramid fiber is 5-7mm.

Embodiment 3

[0052] A preparation method of concrete with good wear resistance:

[0053] Add 85kg of fly ash, 56kg of blast furnace slag, 680kg of sand, 1120kg of gravel, 7.7kg of polyvinyl alcohol and 1.8kg of para-aramid fiber into the concrete mixer, mix and stir for 3 minutes, then add 236kg of cement, continue to mix and stir for 2 minutes, and then add 6.7 kg of water reducer and 115kg of water, and continue to mix and stir for 1 min to obtain concrete with good wear resistance.

[0054] Wherein the length of the para-aramid fiber is 5-7mm.

[0055] In order to reflect the difference between Example 1 and Example 3 more clearly, the differences in raw material proportions between Example 1 and Example 3 are listed in Table 1.

[0056] Table 1

[0057] Example 1 Example 2 Example 3 cement (kg) 250 220 236 Fly ash (kg) 78 95 85 Blast furnace slag (kg) 62 72 56 Sand (kg) 690 665 680 Gravel (kg) 1080 1150 1120 Polyvinyl alcoho...

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Abstract

The invention relates to the field of concrete, and particularly discloses concrete with good wear resistance and a preparation method thereof. The invention discloses concrete with good wear resistance. The concrete is prepared from the following raw materials in parts by weight: 220-250 parts of cement; 78-95 parts of fly ash; 56-72 parts of blast furnace slag; 6.2-7.2 parts of a water reducingagent; 665-690 parts of sand; 1080-1150 parts of broken stone; 5.6-7.7 parts of polyvinyl alcohol; 1.4-2.3 parts of aramid fiber; 105-122 parts of water; the preparation method comprises the followingsteps: mixing and stirring the fly ash, the blast furnace slag, the sand, the broken stone, the polyvinyl alcohol and the aramid fiber, then adding the cement, continuously mixing and stirring, thenadding the water reducing agent and the water, and continuously mixing and stirring to obtain the concrete with good wear resistance. The preparation method has the advantages of improving the wear resistance of the concrete and being energy-saving and environment-friendly.

Description

technical field [0001] The application relates to the field of concrete, more specifically, it relates to a concrete with good wear resistance and a preparation method thereof. Background technique [0002] Concrete is a common material in construction projects and bears the heavy responsibility of social construction. Concrete is widely used in house construction, road construction and water conservancy project construction; with the continuous improvement of construction technology of water conservancy projects, people use it in construction The requirements for concrete are getting higher and higher, and water conservancy projects need to be applied for a long time, so the durability requirements of concrete will be higher. One of the factors that reflects the durability of concrete is the wear resistance. The wear resistance of concrete reflects the ability of the concrete surface to resist abrasion. [0003] At present, in order to improve the wear resistance of concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B24/26C04B16/06C04B18/14C04B20/10C04B111/20
CPCC04B16/0691C04B18/141C04B20/1048C04B24/2623C04B28/00C04B2111/2038C04B2201/50C04B18/08C04B2103/302C04B14/06C04B18/12C04B22/002C04B20/023Y02W30/91
Inventor 冼浩平吕卫民唐昌伟黄育林梁俊文郑凯升高春雷
Owner 佛山市建通混凝土制品有限公司
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