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A platform for research: civil engineering, architecture and urbanism
Recycled concrete adulteration material, recycled concrete and preparation method of recycled concrete adulteration material
The invention provides a recycled concrete doping material, recycled concrete and a preparation method of the recycled concrete, and relates to the technical field of concrete materials. The recycled concrete doping material provided by the invention comprises calcined hydrotalcite, the calcined hydrotalcite is obtained by calcining hydrotalcite at the temperature of 600 DEG C or below. The preparation method comprises the following steps: after hydrotalcite is calcined at a proper temperature, interlayer anions and moisture of the hydrotalcite are lost, and calcined hydrotalcite is obtained; the high activity of the calcined hydrotalcite can adsorb redundant chloride ions. According to the recycled concrete provided by the invention, the calcined hydrotalcite is added into the recycled concrete, so that chloride ions carried by the recycled aggregate can be adsorbed, the problem of ion carrying of the recycled aggregate is solved fundamentally, the pore structure of the recycled concrete can be improved, and the service life of the recycled concrete is prolonged; the dual effects of improving the porosity and improving the durability are achieved, and important theoretical and practical significance is achieved on resource saving.
本发明提供了一种再生混凝土掺加材料和再生混凝土及其制备方法，涉及混凝土材料技术领域。本发明提供的再生混凝土掺加材料，包括煅烧水滑石；所述煅烧水滑石是将水滑石在600℃以下的温度条件下煅烧得到的。本发明将水滑石在适当的温度煅烧后，失去其层间阴离子和水分，得到煅烧水滑石；所述煅烧水滑石的高活性能够吸附多余的氯离子。本发明提供了一种再生混凝土，本发明将煅烧水滑石添加至再生混凝土中不仅能够吸附再生骨料携带氯离子，在再生骨料根源上解决了携带离子的问题，还能够使再生混凝土孔隙结构得到改善，延长再生混凝土的使用寿命，达到改善孔隙率高和提高耐久性的双重效果，对资源节约具有重要的理论和现实意义。
Recycled concrete adulteration material, recycled concrete and preparation method of recycled concrete adulteration material
The invention provides a recycled concrete doping material, recycled concrete and a preparation method of the recycled concrete, and relates to the technical field of concrete materials. The recycled concrete doping material provided by the invention comprises calcined hydrotalcite, the calcined hydrotalcite is obtained by calcining hydrotalcite at the temperature of 600 DEG C or below. The preparation method comprises the following steps: after hydrotalcite is calcined at a proper temperature, interlayer anions and moisture of the hydrotalcite are lost, and calcined hydrotalcite is obtained; the high activity of the calcined hydrotalcite can adsorb redundant chloride ions. According to the recycled concrete provided by the invention, the calcined hydrotalcite is added into the recycled concrete, so that chloride ions carried by the recycled aggregate can be adsorbed, the problem of ion carrying of the recycled aggregate is solved fundamentally, the pore structure of the recycled concrete can be improved, and the service life of the recycled concrete is prolonged; the dual effects of improving the porosity and improving the durability are achieved, and important theoretical and practical significance is achieved on resource saving.
本发明提供了一种再生混凝土掺加材料和再生混凝土及其制备方法，涉及混凝土材料技术领域。本发明提供的再生混凝土掺加材料，包括煅烧水滑石；所述煅烧水滑石是将水滑石在600℃以下的温度条件下煅烧得到的。本发明将水滑石在适当的温度煅烧后，失去其层间阴离子和水分，得到煅烧水滑石；所述煅烧水滑石的高活性能够吸附多余的氯离子。本发明提供了一种再生混凝土，本发明将煅烧水滑石添加至再生混凝土中不仅能够吸附再生骨料携带氯离子，在再生骨料根源上解决了携带离子的问题，还能够使再生混凝土孔隙结构得到改善，延长再生混凝土的使用寿命，达到改善孔隙率高和提高耐久性的双重效果，对资源节约具有重要的理论和现实意义。
Recycled concrete adulteration material, recycled concrete and preparation method of recycled concrete adulteration material
一种再生混凝土掺加材料和再生混凝土及其制备方法
GAO SONG (author) / JI YUAN (author) / JIN ZUQUAN (author) / ZHANG LEI (author) / LI SHAOCHUN (author) / LONG WUJIAN (author) / ZHANG SHIYU (author) / WANG SHIYINUO (author) / HU TAO (author)
2023-11-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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