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C30 concrete and production process thereof

A technology of concrete and palm fiber, applied in the field of concrete, can solve the problems of easy cracking and reduced interface adhesion, and achieve the effects of not easy cracking, enhanced bonding force, and increased specific surface area.

Inactive Publication Date: 2020-08-11
陕西汇丰高性能粉体材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned prior art solution has the following defects: the above-mentioned formula uses recycled aggregate, and there is old cement mortar on the surface of the recycled aggregate, which will reduce the interface adhesion when combined with new cementitious materials, and still exist after curing Defects that are prone to cracking

Method used

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  • C30 concrete and production process thereof
  • C30 concrete and production process thereof
  • C30 concrete and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: A kind of C30 concrete, the components of its raw materials and their corresponding parts by weight are shown in Table 1. Wherein, the cement is ordinary Portland cement, and the polycarboxylate water reducer is a commercially available polycarboxylate water reducer,

[0039] The preparation method of modified palm fiber is as follows: take off 15 parts of reticular palm fiber from the periphery of palm tree bar, dry after washing with water, extract single palm fiber, the length of single palm fiber is 20-30cm, in this In the embodiment, it is 20cm. Add sodium hydroxide and non-ionic fluorocarbon surfactant into water, immerse the palm fiber, mix and stir evenly to obtain a modified liquid, add palm fiber to the modified liquid, heat up to 90°C, and process After 20 minutes, filter to obtain palm fiber, rinse with water, and dry at 120° C. for 20 minutes to obtain modified palm fiber.

[0040] The weight percentage of sodium hydroxide, non-ionic fluorocarb...

Embodiment 2-5

[0042] Example 2-5: A C30 concrete, the difference from Example 1 is that the components of the raw materials and their parts by weight are shown in Table 1.

[0043] Each component of raw material and parts by weight thereof in table 1 embodiment 1-5

[0044]

[0045]

Embodiment 6

[0046] Embodiment 6: a kind of C30 concrete, the difference with embodiment 1 is that the preparation method of modified palm fiber is as follows: remove 20 parts of reticular palm fiber from the palm tree bar periphery, dry after washing with water, Take out a single palm fiber, add sodium hydroxide and non-ionic fluorocarbon surfactant into water, immerse the palm fiber, mix and stir evenly to obtain a modified solution, add the palm fiber to the modified solution, raise the temperature to 100°C, and process After 10 minutes, the palm fiber was obtained by filtering, washed with water, and dried at 130° C. for 10 minutes to obtain the modified palm fiber.

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Abstract

The invention discloses C30 concrete and a production process thereof, belonging to the technical field of concrete. According to main points of a technical scheme in the invention, the C30 concrete comprises the following raw materials in parts by weight: 290 to 310 parts of cement, 170 to 180 parts of water, 680 to 700 parts of sand, 1250 to 1260 parts of broken stone, 4-6 parts of a polycarboxylate superplasticizer, and 8-10 parts of modified palm fiber. The C30 concrete has the advantage of being not prone to cracking.

Description

technical field [0001] This application relates to the technical field of concrete, in particular to a C30 concrete and its production process. Background technique [0002] Ordinary concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in an appropriate proportion, and uniformly stirred, compacted and cured. . Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. The strength grade of concrete is divided by the standard value of cubic compressive strength, and the strength grade of ordinary concrete is divided into 14 grades: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80. [0003] A C30 concrete is disclosed in the Chinese invention patent with the publ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/26C04B20/02C04B111/34
CPCC04B28/04C04B18/265C04B20/023C04B2111/343C04B22/002C04B14/06C04B14/02C04B2103/302Y02W30/91
Inventor 龙毅尹泽峰
Owner 陕西汇丰高性能粉体材料有限公司
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