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A platform for research: civil engineering, architecture and urbanism
High-strength pervious concrete and preparation method thereof
The invention relates to high-strength pervious concrete and a preparation method thereof, and belongs to the technical field of concrete preparation. The geopolymer slurry is firstly prepared, then the geopolymer slurry and the modified filler are subjected to a blending reaction to finally prepare the concrete, the geopolymer is of a zeolite-like structure and has a large number of cavities wide in particle size distribution range, and the red mud in the modified filler has the advantages of being high in alkalinity and large in specific surface area. The geopolymer and the red mud both have certain heavy metal ion adsorption capacity, so that the prepared pervious concrete has excellent purification performance, and the modified high-molecular polymer layers attached to the surfaces of the red mud and the graded aggregate have adhesiveness, so that a cement paste layer is more easily attached to the surfaces of the red mud and the graded aggregate in the concrete stirring process, the cementation degree becomes higher, and the water-permeable concrete has better water-permeable performance. Therefore, the mechanical strength of the pervious concrete is improved, the pervious concrete with good water purification effect and high mechanical strength is finally obtained, and the application prospect is wide.
本发明涉及一种高强度透水混凝土及其制备方法，属于混凝土制备技术领域。本发明首先制备地聚物浆体，再将地聚物浆体和改性填料共混反应最终制得混凝土，其中地聚合物呈类沸石状结构，存在大量粒径分布范围宽广的空腔，改性填料里的赤泥具有碱性强、比表面积大特点，地聚合物和赤泥都具有一定的吸附重金属离子能力，因此制得的透水混凝土中净化性能优异，而赤泥和级配骨料表面附着的改性高分子聚合物层具有的粘附性使得它们在混凝土搅拌过程中，水泥浆层更容易附着在其表面，胶结程度变高，从而提高了透水混凝土的力学强度，最终得到水体净化效果好，力学强度高的透水混凝土，应用前景广阔。
High-strength pervious concrete and preparation method thereof
The invention relates to high-strength pervious concrete and a preparation method thereof, and belongs to the technical field of concrete preparation. The geopolymer slurry is firstly prepared, then the geopolymer slurry and the modified filler are subjected to a blending reaction to finally prepare the concrete, the geopolymer is of a zeolite-like structure and has a large number of cavities wide in particle size distribution range, and the red mud in the modified filler has the advantages of being high in alkalinity and large in specific surface area. The geopolymer and the red mud both have certain heavy metal ion adsorption capacity, so that the prepared pervious concrete has excellent purification performance, and the modified high-molecular polymer layers attached to the surfaces of the red mud and the graded aggregate have adhesiveness, so that a cement paste layer is more easily attached to the surfaces of the red mud and the graded aggregate in the concrete stirring process, the cementation degree becomes higher, and the water-permeable concrete has better water-permeable performance. Therefore, the mechanical strength of the pervious concrete is improved, the pervious concrete with good water purification effect and high mechanical strength is finally obtained, and the application prospect is wide.
本发明涉及一种高强度透水混凝土及其制备方法，属于混凝土制备技术领域。本发明首先制备地聚物浆体，再将地聚物浆体和改性填料共混反应最终制得混凝土，其中地聚合物呈类沸石状结构，存在大量粒径分布范围宽广的空腔，改性填料里的赤泥具有碱性强、比表面积大特点，地聚合物和赤泥都具有一定的吸附重金属离子能力，因此制得的透水混凝土中净化性能优异，而赤泥和级配骨料表面附着的改性高分子聚合物层具有的粘附性使得它们在混凝土搅拌过程中，水泥浆层更容易附着在其表面，胶结程度变高，从而提高了透水混凝土的力学强度，最终得到水体净化效果好，力学强度高的透水混凝土，应用前景广阔。
High-strength pervious concrete and preparation method thereof
一种高强度透水混凝土及其制备方法
BAI JUN (author) / LIU FEISHI (author) / FU LIANGQI (author) / YANG XIN (author) / GAO JIANDA (author)
2024-05-24
Patent
Electronic Resource
Chinese
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