Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete material and preparation method thereof
The invention provides a recycled concrete material and a preparation method thereof, and particularly relates to the technical field of recycled concrete. The recycled concrete material is prepared from the following raw materials in parts by weight: 2-12 parts of a weakly alkaline coupling agent; 120 to 230 parts of water; 1-11 parts of a water reducing agent; 450 to 550 parts of sand; the raw materials comprise 250-350 parts of cement, 50-150 parts of fly ash and 30-130 parts of granulated blast furnace slag; the natural gravel accounts for 450-950 parts, and the recycled coarse aggregate accounts for 700-800 parts. The preparation method provided by the invention is simple, does not need processes such as high-temperature heating or drying, and is easy to popularize; the basic mechanical property and durability of the prepared concrete are higher than those of common concrete, a large amount of fly ash and slag are used for replacing cement, and the use amount of the cement is reduced, so that the production cost is reduced, and the pollution of industrial byproducts such as fly ash and slag to the environment and the discharge amount of building solid waste are reduced.
本发明提供了一种再生混凝土材料及其制备方法,具体涉及再生混凝土技术领域。该再生混凝土材料，由以下重量份的原材料制成：弱碱性偶联剂2～12份；水120～230份；减水剂1～11份；砂450～550份；水泥250～350份，粉煤灰50～150份，粒化高炉矿渣30～130份；天然碎石450～950份，再生粗骨料700～800份。本发明提供的制备方法简易且无需高温加热或干化等过程，易于推广；所制备的混凝土其基本力学与耐久性能较普通混凝土高，且使用大量粉煤灰、矿渣替代水泥，降低水泥用量，从而降低生产成本，减少了粉煤灰、矿渣等工业副产品对环境的污染和建筑固废排放量。
Recycled concrete material and preparation method thereof
The invention provides a recycled concrete material and a preparation method thereof, and particularly relates to the technical field of recycled concrete. The recycled concrete material is prepared from the following raw materials in parts by weight: 2-12 parts of a weakly alkaline coupling agent; 120 to 230 parts of water; 1-11 parts of a water reducing agent; 450 to 550 parts of sand; the raw materials comprise 250-350 parts of cement, 50-150 parts of fly ash and 30-130 parts of granulated blast furnace slag; the natural gravel accounts for 450-950 parts, and the recycled coarse aggregate accounts for 700-800 parts. The preparation method provided by the invention is simple, does not need processes such as high-temperature heating or drying, and is easy to popularize; the basic mechanical property and durability of the prepared concrete are higher than those of common concrete, a large amount of fly ash and slag are used for replacing cement, and the use amount of the cement is reduced, so that the production cost is reduced, and the pollution of industrial byproducts such as fly ash and slag to the environment and the discharge amount of building solid waste are reduced.
本发明提供了一种再生混凝土材料及其制备方法,具体涉及再生混凝土技术领域。该再生混凝土材料，由以下重量份的原材料制成：弱碱性偶联剂2～12份；水120～230份；减水剂1～11份；砂450～550份；水泥250～350份，粉煤灰50～150份，粒化高炉矿渣30～130份；天然碎石450～950份，再生粗骨料700～800份。本发明提供的制备方法简易且无需高温加热或干化等过程，易于推广；所制备的混凝土其基本力学与耐久性能较普通混凝土高，且使用大量粉煤灰、矿渣替代水泥，降低水泥用量，从而降低生产成本，减少了粉煤灰、矿渣等工业副产品对环境的污染和建筑固废排放量。
Recycled concrete material and preparation method thereof
一种再生混凝土材料及其制备方法
LIU YINYING (Autor:in) / YAN HONGLIN (Autor:in) / QI XUAN (Autor:in) / PEI BIYING (Autor:in) / ZHANG MIN (Autor:in)
23.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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