Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled aggregate pervious concrete as well as preparation method and application thereof
The invention provides recycled aggregate pervious concrete as well as a preparation method and application thereof, and belongs to the technical field of concrete materials. The recycled aggregate pervious concrete provided by the invention is prepared from the following raw material components in parts by weight: 500 to 600 parts of recycled coarse aggregate; 10 to 20 parts of a polycarboxylic acid water reducing agent; 40 to 50 parts of modified charcoal; 20-30 parts of a fiber filler; 210 to 230 parts of Portland cement; 3-6 parts of a silane coupling agent; 90 to 110 parts of water; wherein the recycled coarse aggregate is aggregate obtained after waste concrete is crushed, and the particle size of the recycled coarse aggregate is 4.75-9.5 mm; the modified biochar is obtained by performing irradiation modification on biochar subjected to high-temperature carbonization treatment; the fiber filler comprises the following raw materials in percentage by weight: 30-40% of polypropylene fiber; 20 to 40% of basalt fiber; and 20-40% of steel fiber. The compressive strength, the COD removal rate, the water absorption performance, the water storage performance and the like of the recycled aggregate pervious concrete can be improved, the cumulative evaporation capacity is increased, the quality of concrete in power transmission and transformation civil engineering is effectively improved, the engineering quality problem is reduced, and the service life is prolonged.
本发明提供了一种再生骨料透水混凝土及其制备方法与应用，属于混凝土材料技术领域。本发明提供的一种再生骨料透水混凝土按重量份数计，包括以下原料组分：再生粗骨料500‑600份；聚羧酸减水剂10‑20份；改性生物炭40‑50份；纤维填料20‑30份；硅酸盐水泥210‑230份；硅烷偶联剂3‑6份；水90‑110份；其中，所述再生粗骨料为废弃混凝土破碎后的集料，其粒径为4.75‑9.5mm；所述改性生物炭为经高温炭化处理的生物炭经辐照改性而得；所述纤维填料包括以下重量百分比的原料：聚丙烯纤维30‑40％；玄武岩纤维20‑40％；刚纤维20‑40％。本发明能够提高再生骨料透水混凝土的抗压强度、COD的去除率以及吸水、储水等性能，增加累积蒸发量，有效提升送变电土建工程中混凝土的质量，减少工程质量问题和提升使用年限。
Recycled aggregate pervious concrete as well as preparation method and application thereof
The invention provides recycled aggregate pervious concrete as well as a preparation method and application thereof, and belongs to the technical field of concrete materials. The recycled aggregate pervious concrete provided by the invention is prepared from the following raw material components in parts by weight: 500 to 600 parts of recycled coarse aggregate; 10 to 20 parts of a polycarboxylic acid water reducing agent; 40 to 50 parts of modified charcoal; 20-30 parts of a fiber filler; 210 to 230 parts of Portland cement; 3-6 parts of a silane coupling agent; 90 to 110 parts of water; wherein the recycled coarse aggregate is aggregate obtained after waste concrete is crushed, and the particle size of the recycled coarse aggregate is 4.75-9.5 mm; the modified biochar is obtained by performing irradiation modification on biochar subjected to high-temperature carbonization treatment; the fiber filler comprises the following raw materials in percentage by weight: 30-40% of polypropylene fiber; 20 to 40% of basalt fiber; and 20-40% of steel fiber. The compressive strength, the COD removal rate, the water absorption performance, the water storage performance and the like of the recycled aggregate pervious concrete can be improved, the cumulative evaporation capacity is increased, the quality of concrete in power transmission and transformation civil engineering is effectively improved, the engineering quality problem is reduced, and the service life is prolonged.
本发明提供了一种再生骨料透水混凝土及其制备方法与应用，属于混凝土材料技术领域。本发明提供的一种再生骨料透水混凝土按重量份数计，包括以下原料组分：再生粗骨料500‑600份；聚羧酸减水剂10‑20份；改性生物炭40‑50份；纤维填料20‑30份；硅酸盐水泥210‑230份；硅烷偶联剂3‑6份；水90‑110份；其中，所述再生粗骨料为废弃混凝土破碎后的集料，其粒径为4.75‑9.5mm；所述改性生物炭为经高温炭化处理的生物炭经辐照改性而得；所述纤维填料包括以下重量百分比的原料：聚丙烯纤维30‑40％；玄武岩纤维20‑40％；刚纤维20‑40％。本发明能够提高再生骨料透水混凝土的抗压强度、COD的去除率以及吸水、储水等性能，增加累积蒸发量，有效提升送变电土建工程中混凝土的质量，减少工程质量问题和提升使用年限。
Recycled aggregate pervious concrete as well as preparation method and application thereof
一种再生骨料透水混凝土及其制备方法与应用
SONG FENG (Autor:in) / WANG GUANGMIN (Autor:in) / WANG MENG (Autor:in) / JIA JIANCHUN (Autor:in) / HU WEIWEI (Autor:in) / LIU XIANHUA (Autor:in) / ZHANG ZHE (Autor:in) / ZHANG MIN (Autor:in) / FENG YONGGANG (Autor:in) / DONG JIANGFENG (Autor:in)
21.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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