Basalt fiber concrete and preparation method thereof

A basalt fiber and concrete technology, applied in the field of concrete, can solve the problems of hindering the use of reinforcing fibers, unstable chemical properties, poor concrete toughness, etc., and achieve the effects of improving toughness and anti-cracking performance, low production cost, and improved impact resistance.

Active Publication Date: 2013-12-11
SICHUAN AEROSPACE TUOXIN BASALT IND
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  • Description
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Problems solved by technology

[0003] One of the purposes of the present invention is to solve the above-mentioned deficiencies, provide a kind of basalt fiber concrete and its preparation method, in order to solve the poor toughness of concrete in the prior art, and the phenomenon of cracks and shrinkage during use is obvious, and it is easy to use it by adding reinforcing fibers Obstacles, unstable chemical properties, high cost and other technical problems

Method used

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  • Basalt fiber concrete and preparation method thereof

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Effect test

Embodiment 1

[0024] In the present embodiment, 100 kilograms is used as the total weight of the proportion, including 19 kilograms of cement, 33.79 kilograms of sand, 35 kilograms of stones, 2 kilograms of water-quenched blast furnace slag powder, 1.5 kilograms of fly ash, and 0.05 kilograms basalt short fiber, 0.06 kg of glass fiber, 8.5 kg of water, 0.05 kg of CTF synergist, 0.05 kg of water reducer.

[0025] The water reducer used in this embodiment and the following embodiments can be selected from ordinary water reducer, high efficiency water reducer, air entraining water reducer, retarding water reducing Water agent, high-efficiency early-strength superplasticizer and other types, or two or more can be selected to form a mixture and added to the concrete.

[0026] According to the above ratio, refer to figure 1 As shown, the concrete can be prepared according to the following steps:

[0027] Step 1. Add sand, cement, fly ash, water-quenched blast furnace slag powder, sand and basal...

Embodiment 2

[0035] One embodiment of the present invention is a kind of basalt fiber concrete, with 300 kilograms as proportioning total weight, including 52 kilograms of cement, 100 kilograms of sand, 111 kilograms of stones, 3 kilograms of volcanic ash, 3 kilograms of diatomite , 0.3 kg of basalt short fiber, 1 kg of aramid fiber, 20.4 kg of water, 0.24 kg of CTF synergist, 0.3 kg of water reducer, 6 kg of a mixture of zeolite powder and silica fume, 2.76 kg of calcined partial A mixture of kaolin powder and rice husk ash.

[0036] In this embodiment, in order to ensure the fluidity of the mixture, it is best to use granular raw materials in the selection of materials, for example, the particle size of the above-mentioned stones must be less than or equal to 31.5 mm.

[0037] According to the above ratio, refer to figure 1 As shown, the concrete can be prepared according to the following steps:

[0038] Step 1, adding the mixture of sand, cement, diatomaceous earth, volcanic ash, sand...

Embodiment 3

[0046] One embodiment of the present invention is a kind of basalt fiber concrete, with 500 kilograms as proportioning total weight, including 90 kilograms of cement, 180 kilograms of sand, 175 kilograms of stones, 7 kilograms of water-quenched blast furnace slag powder, 6 kilograms fly ash, 2.5 kg of short basalt fiber, 3 kg of glass fiber, 30 kg of water, 0.5 kg of CTF synergist, 0.75 kg of water reducer, 4.5 kg of a mixture of silica fume and tuff powder, 0.75 kg of A mixture of calcareous clay and calcined coal gangue.

[0047] In this embodiment, in order to ensure the fluidity of the mixture, it is best to use particle-grade raw materials in material selection. In addition to using stones with a particle size of 31.5 mm or less, the above-mentioned water-quenched blast furnace slag powder also needs to be finely ground And after adding the mixture of silica fume and tuff powder, and the mixture of limestone powder and calcined metakaolin, the fluidity of the mixture in t...

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Abstract

The invention discloses basalt fiber concrete and a preparation method thereof, and belongs to concrete. The concrete consists of the following components in percentage by weight: 14-19 parts of cement, 29-39 parts of sand, 35-44 parts of stones, 1-4 parts of active admixture, 0.05-0.8 part of basalt short fiber, 0.05-1 part of other short fiber, 6-8.5 parts of water, 0.05-0.15 part of CTF synergist and 0.05-0.2 part of a water reducing agent. Through the addition of the basalt fiber that is in net-form distribution to the concrete, both toughness and anti-cracking performance of the concrete are effectively improved; the concrete, which is prepared depending on the proportions and by the preparation method, has the advantages that the maximum crack width is reduced by 44.8-89.7%, the average cracking area is reduced by 19.7-92.6%, the crack quantity in unit area is reduced by 22.7-25.2%, the total cracking area in the unit area is reduced by 1.7-94.5%, the frost resistance is enhanced by 37-50% and the shock resistance is improved by more than twice; the concrete can be used for effectively avoiding various defects of existing conventional concrete.

Description

technical field [0001] The present invention relates to a kind of concrete, more specifically, the present invention mainly relates to a kind of basalt fiber concrete and its preparation method. Background technique [0002] Concrete is a multi-phase composite material, the properties of each component material are different, and affected by factors such as raw materials, technology, maintenance, construction, etc., there are inevitably micro-cracks in the concrete. The existence of these cracks reduces the strength of concrete and shows brittle failure. Concrete is mixed with mineral admixtures and chemical admixtures, although it can improve the compactness and strength of concrete. But at the same time, the problems of poor toughness, cracks, shrinkage and brittleness of concrete are also more prominent. At present, steel fiber, polypropylene fiber, glass fiber, carbon fiber and vinylon fiber are mostly studied to improve the performance of concrete by adding fiber, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/38
Inventor 胡成燕陈中武杨成春曹柏青鲜平
Owner SICHUAN AEROSPACE TUOXIN BASALT IND
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