High-performance cement-based grouting material for pouring type composite concrete pavement
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A high-performance technology for concrete pavement, applied in the field of cement-based grouting material, can solve the problems of cracking danger, low strength, easy cracking pavement, etc., and achieve good effect without cracking problem and high efficiency
Pending Publication Date: 2022-02-11
北方道路科技(辽宁)有限公司
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Problems solved by technology
[0003] The cement-based grouting material in the prior art has relatively low strength, and it is easy to crack, which leads to frequent maintenance of the pavement. Secondly, if the crack is too large, it may lead to certain dangers. Therefore, a pouring composite concrete pavement with high performance is designed. Cement-based grout to optimize the above problems
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Examples
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Embodiment 1
[0028] Select 300 parts of cement, 100 parts of fine sand, 60 parts of silica fume, 5 parts of triisopropanolamine, 120 parts of fine aggregate, 5 parts of thickener, 10 parts of superplasticizer, 80 parts of expansion material, defoamer 6 parts, 4 parts of anti-settling powder, 10 parts of graphite powder, 20 parts of modified aluminum powder, 10 parts of basalt fiber;
Embodiment 2
[0030] Select 300 parts of cement, 100 parts of fine sand, 60 parts of silica fume, 5 parts of triisopropanolamine, 120 parts of fine aggregate, 5 parts of thickener, 7 parts of superplasticizer, 40 parts of expansion material, defoamer 6 parts, 4 parts of anti-settling powder, 10 parts of graphite powder, 10 parts of modified aluminum powder, 6 parts of basalt fiber;
Embodiment 3
[0032] Select 300 parts of cement, 100 parts of fine sand, 60 parts of silica fume, 5 parts of triisopropanolamine, 120 parts of fine aggregate, 5 parts of thickener, 10 parts of superplasticizer, 60 parts of expansion material, defoamer 6 parts, anti-settling powder 4 parts, graphite powder 10 parts, modified aluminum powder 20 parts, basalt fiber 4 parts.
[0033] The above three examples can be used directly after stirring and mixing, and the strengthening is tested. The strength can reach more than 40 MPa within 2 hours, and the five shrinkage, good durability, and no cracking problem.
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Abstract
The invention discloses a high-performance cement-based grouting material for a pouring type composite concrete pavement, and belongs to the technical field of cement-based grouting materials. 200-300 parts of cement, 50-100 parts of fine sand, 30-60 parts of silica fume, 1-5 parts of triisopropanolamine, 60-120 parts of fine aggregate, 1-5 parts of a thickening agent, 5-10 parts of a super plasticizer, 40-80 parts of an expansion material, 2-6 parts of a defoaming agent, 1-4 parts of anti-settling powder, 5-10 parts of graphite powder, 10-20 parts of modified aluminum powder and 4-10 parts of basalt fiber are selected. The cement-based grouting material has the advantages of no cracking problem, quick reinforcement, and no shrinkage, and the direct use efficiency of field processing is higher.
Description
technical field [0001] The invention relates to a cement-based grouting material, in particular to a high-performance cement-based grouting material for pouring composite concrete pavement, and belongs to the technical field of cement-based grouting material. Background technique [0002] Cement-based grouting material is a powdery material pre-mixed in the factory by high-strength cementing components, super-inking components, expansion components, preferred graded aggregate components and micro-modified components in appropriate proportions. When used, just add water and stir to become a self-leveling high-strength non-shrinkage grouting material with uniform consistency and suitable consistency that can meet the construction requirements. [0003] The cement-based grouting material in the prior art has relatively low strength, and it is easy to crack, which leads to frequent maintenance of the pavement. Secondly, if the crack is too large, it may lead to certain dangers. ...
Claims
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Application Information
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