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A platform for research: civil engineering, architecture and urbanism
Foamed asphalt concrete based on building solid waste recycled aggregate and preparation method thereof
The invention discloses foamed asphalt concrete based on building solid waste recycled aggregate and a preparation method of the foamed asphalt concrete. The foamed asphalt concrete is prepared from 99 to 101 parts of building solid waste recycled aggregate, 1.3 to 1.8 parts of cement, 0.8 to 1.2 parts of lime, 0.3 to 0.5 part of fiber, 10 to 13 parts of water and 3.2 to 3.7 parts of foamed asphalt. The preparation method of the building solid waste recycled aggregate comprises the following steps: 1, soaking: putting silicate-containing wastewater and the building solid waste recycled aggregate into a closed mixing device, enabling the silicate-containing wastewater to completely immerse the building solid waste recycled aggregate by 1-2cm, and soaking for 4-7h at normal temperature and normal pressure; second distribution, mixing, namely filling CO2 gas into the closed mixing device subjected to soaking treatment in the first step, when the pressure reaches 0.5-1.0 MPa, performing mixing treatment for 36-60 hours in a normal-temperature pressurized state, and supplementing the CO2 gas once every 4 hours during mixing treatment to ensure that the pressure in the closed mixing device is 0.5-1.0 MPa and the rotating speed of the closed mixing device is 25-35 r/min; 3, cleaning: discharging the silicate-containing wastewater in the closed mixing device after mixing treatment in the step 2, and washing the building solid waste recycled aggregate with clear water; and 4, drying: discharging the building solid waste recycled aggregate cleaned in the step 3, and drying or naturally airing to obtain the silicate-containing wastewater reinforced building solid waste recycled aggregate.
本发明公开了一种基于建筑固废再生骨料的泡沫沥青混凝土及其制备方法，包括建筑固废再生骨料99‑101份、水泥1.3～1.8份、石灰0.8～1.2份、纤维0.3～0.5份、水10～13份、泡沫沥青3.2～3.7份。其中建筑固废再生骨料的制备方法为：第一步，浸泡，将含硅酸盐废水和建筑固废再生骨料放入密闭混合装置内，使含硅酸盐废水完全浸没建筑固废再生骨料1～2cm，常温常压状态下浸泡处理4～7h；第二布，混合，向第一步浸泡处理后的密闭混合装置内充入CO2气体，达到0.5～1.0MPa时，常温加压状态下混合处理36～60h，混合处理期间每间隔4h补充一次CO2气体保证密闭混合装置内的压力为0.5～1.0MPa，密闭混合装置的转速为25～35r/min；第三步，清洗，将第二步混合处理后的密闭混合装置内的含硅酸盐废水排出，用清水冲洗建筑固废再生骨料；第四步，干燥，将第三步清洗处理后的建筑固废再生骨料放出，烘干或自然晾干，得到含硅酸盐废水强化的建筑固废再生骨料。
Foamed asphalt concrete based on building solid waste recycled aggregate and preparation method thereof
The invention discloses foamed asphalt concrete based on building solid waste recycled aggregate and a preparation method of the foamed asphalt concrete. The foamed asphalt concrete is prepared from 99 to 101 parts of building solid waste recycled aggregate, 1.3 to 1.8 parts of cement, 0.8 to 1.2 parts of lime, 0.3 to 0.5 part of fiber, 10 to 13 parts of water and 3.2 to 3.7 parts of foamed asphalt. The preparation method of the building solid waste recycled aggregate comprises the following steps: 1, soaking: putting silicate-containing wastewater and the building solid waste recycled aggregate into a closed mixing device, enabling the silicate-containing wastewater to completely immerse the building solid waste recycled aggregate by 1-2cm, and soaking for 4-7h at normal temperature and normal pressure; second distribution, mixing, namely filling CO2 gas into the closed mixing device subjected to soaking treatment in the first step, when the pressure reaches 0.5-1.0 MPa, performing mixing treatment for 36-60 hours in a normal-temperature pressurized state, and supplementing the CO2 gas once every 4 hours during mixing treatment to ensure that the pressure in the closed mixing device is 0.5-1.0 MPa and the rotating speed of the closed mixing device is 25-35 r/min; 3, cleaning: discharging the silicate-containing wastewater in the closed mixing device after mixing treatment in the step 2, and washing the building solid waste recycled aggregate with clear water; and 4, drying: discharging the building solid waste recycled aggregate cleaned in the step 3, and drying or naturally airing to obtain the silicate-containing wastewater reinforced building solid waste recycled aggregate.
本发明公开了一种基于建筑固废再生骨料的泡沫沥青混凝土及其制备方法，包括建筑固废再生骨料99‑101份、水泥1.3～1.8份、石灰0.8～1.2份、纤维0.3～0.5份、水10～13份、泡沫沥青3.2～3.7份。其中建筑固废再生骨料的制备方法为：第一步，浸泡，将含硅酸盐废水和建筑固废再生骨料放入密闭混合装置内，使含硅酸盐废水完全浸没建筑固废再生骨料1～2cm，常温常压状态下浸泡处理4～7h；第二布，混合，向第一步浸泡处理后的密闭混合装置内充入CO2气体，达到0.5～1.0MPa时，常温加压状态下混合处理36～60h，混合处理期间每间隔4h补充一次CO2气体保证密闭混合装置内的压力为0.5～1.0MPa，密闭混合装置的转速为25～35r/min；第三步，清洗，将第二步混合处理后的密闭混合装置内的含硅酸盐废水排出，用清水冲洗建筑固废再生骨料；第四步，干燥，将第三步清洗处理后的建筑固废再生骨料放出，烘干或自然晾干，得到含硅酸盐废水强化的建筑固废再生骨料。
Foamed asphalt concrete based on building solid waste recycled aggregate and preparation method thereof
一种基于建筑固废再生骨料的泡沫沥青混凝土及其制备方法
ZHANG HAIJIAN (author) / ZHANG JINGLIANG (author) / YANG ZIJUN (author) / CHEN FENGYANG (author) / GAO JUNLIANG (author) / YAO LIANG (author) / WANG HONGBIN (author)
2024-01-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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