Formula and preparation process of anti-seismic high-strength anti-crack concrete
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A preparation process and concrete technology, which is applied in the field of anti-seismic concrete, can solve problems such as cracks caused by the homogeneity of raw materials, achieve the effect of improving uniform spreading ability, reducing shrinkage and cracks, and improving the overall anti-seismic and cracking ability
Pending Publication Date: 2022-04-22
常熟市博海新型建材有限公司
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Problems solved by technology
[0004] The purpose of the present invention is: in order to solve the problem that the strength of concrete cannot meet the needs of high-strength anti-cracking, after pouring concrete, it is easy to produce cracks due to the homogeneity of raw materials. Concrete cracks are the main factors affecting the seismic performance, so it is good The anti-crack performance is the main factor of anti-seismic concrete, and a formula and preparation process of anti-seismic high-strength anti-crack concrete are proposed
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Embodiment 2
[0034] An anti-seismic high-strength crack-resistant concrete formula, which is composed of the following components by weight: 48 parts of cement, 77 parts of sand, 20 parts of water, 120 parts of stone, 8 parts of fly ash, 8 parts of mineral powder, and 8 parts of admixture parts, 4 parts of filler fibers, 15 parts of filler particles, the filler fibers are polyacrylonitrile fibers, the additives include polycarboxylate water reducers and expansion agents, and the filler particles include steel slag, shale pottery sand, Pumice powder, mica stone, modified graphene filled particles, and steel slag, shale pottery sand, pumice powder, mica stone, modified graphene particles and nano-SiO2, and the ratio is 2:1:1.4:1.1:1:3 : 1;
[0035]A preparation process for earthquake-resistant high-strength crack-resistant concrete, specifically comprising the following steps: S1, modifying the steel slag in the filler particles, and improving the strength and excitation activity of the stee...
Embodiment 3
[0039] An earthquake-resistant high-strength crack-resistant concrete formula, which is composed of the following components by weight: 42 parts of cement, 70 parts of sand, 18 parts of water, 11 parts of stone, 6 parts of fly ash, 7 parts of mineral powder, and 7 parts of admixture parts, 3 parts of filler fibers, 12 parts of filler particles, the filler fibers are polyacrylonitrile fibers, the additives include polycarboxylate water reducers and expansion agents, and the filler particles include steel slag, shale pottery sand, Pumice powder, mica stone, modified graphene filled particles, and steel slag, shale pottery sand, pumice powder, mica stone, modified graphene particles and nano-SiO2, and the ratio is 2:1:1.4:1.1:1:3 : 1;
[0040] A preparation process for earthquake-resistant high-strength crack-resistant concrete, specifically comprising the following steps: S1, modifying the steel slag in the filler particles, and improving the strength and excitation activity of ...
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Abstract
The invention discloses an anti-seismic high-strength anti-crack concrete formula and a preparation process, and belongs to the technical field of anti-seismic concretes.The anti-seismic high-strength anti-crack concrete formula comprises the steps that S1, steel slag in filler particles is modified; s2, taking the filler particles according to the formula amount; s3, filling particle mixed materials; s4, the stones are washed after being sieved; and S5, mixing and preparing. According to the invention, the anti-shearing force capability of the concrete is enhanced and modified by the polyacrylonitrile filler fibers, and the polyacrylonitrile filler fibers have good dispersibility in cement, and have good chemical stability while resisting acid, alkali, hydrolysis and cracks, and the graphene particles can realize the modification of the temperature resistance capability. High dispersity and mixing capacity can be achieved through atomized and sprayed graphene particles and nano SiO2, the uniform scattering capacity after mixing is improved, meanwhile, the cross-linking capacity to cement and filler fibers is achieved through the micropore structure of the graphene particles and the nano SiO2, and the overall anti-seismic and anti-cracking capacity is improved.
Description
technical field [0001] The invention belongs to the technical field of anti-seismic concrete, and in particular relates to a formula and preparation process of anti-seismic high-strength crack-resistant concrete. Background technique [0002] Concrete refers to a building material that is mixed with cement, water, sand, and stones. Although concrete has a certain strength, concrete is widely used in construction, roads, and prefabricated parts. It can achieve good building strength and is the main building material. One of the civil engineering materials. [0003] Chinese patent document CN111253122A discloses a concrete formula, which includes the following components by weight: 129.5 to 140 parts of cement; 125.5 to 130 parts of ultrafine mineral admixtures; 80 parts of fly ash; 300 parts of yellow sand; ~585.5 parts; 1010~1017.5 parts of crushed stone; 7 parts of water reducer; In frequent areas, the strength of concrete often cannot meet the needs of high-strength crac...
Claims
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Application Information
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