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High-ductility geopolymer recycled concrete and preparation method thereof
The invention discloses high-ductility geopolymer recycled concrete and a preparation method thereof, and belongs to the technical field of concrete. The high-ductility geopolymer recycled concrete prepared by the method comprises the following raw materials: slag powder, fly ash, recycled sand, PVA fibers, an alkali activator, a water reducing agent and water, the raw materials are uniformly mixed and poured into a mold for molding, and then high-temperature curing and constant-temperature and constant-humidity curing are performed to obtain the high-ductility geopolymer recycled concrete. The geopolymer concrete is subjected to fiber toughening treatment and is matched with reclaimed sand to form a buffer layer, so that friction and impact between a sand material and a cementing material are relieved, the brittleness of the geopolymer concrete is improved, and then the high-ductility geopolymer recycled concrete which is low in carbon, economical, excellent in mechanical property and has the strain hardening characteristic is prepared. The cyclic utilization of the industrial solid waste and the waste concrete is realized.
本发明公开了一种高延性地聚物再生混凝土及其制备方法，属于混凝土技术领域。本发明制备的高延性地聚物再生混凝土的原料包括矿渣粉、粉煤灰、再生砂、PVA纤维、碱激发剂、减水剂和水，将原料均匀混合后倒入模具中成型，再进行高温养护和恒温恒湿养护，得到所述高延性地聚物再生混凝土。本发明通过对地聚物混凝土进行纤维增韧处理，并配合再生砂形成缓冲层从而缓解砂料和胶凝材料之间的摩擦和冲击，改善地聚物混凝土的脆性，进而制备一种低碳经济、力学性能优异的具有应变硬化特性的高延性地聚物再生混凝土，实现了工业固体废料和废弃混凝土的循环利用。
High-ductility geopolymer recycled concrete and preparation method thereof
The invention discloses high-ductility geopolymer recycled concrete and a preparation method thereof, and belongs to the technical field of concrete. The high-ductility geopolymer recycled concrete prepared by the method comprises the following raw materials: slag powder, fly ash, recycled sand, PVA fibers, an alkali activator, a water reducing agent and water, the raw materials are uniformly mixed and poured into a mold for molding, and then high-temperature curing and constant-temperature and constant-humidity curing are performed to obtain the high-ductility geopolymer recycled concrete. The geopolymer concrete is subjected to fiber toughening treatment and is matched with reclaimed sand to form a buffer layer, so that friction and impact between a sand material and a cementing material are relieved, the brittleness of the geopolymer concrete is improved, and then the high-ductility geopolymer recycled concrete which is low in carbon, economical, excellent in mechanical property and has the strain hardening characteristic is prepared. The cyclic utilization of the industrial solid waste and the waste concrete is realized.
本发明公开了一种高延性地聚物再生混凝土及其制备方法，属于混凝土技术领域。本发明制备的高延性地聚物再生混凝土的原料包括矿渣粉、粉煤灰、再生砂、PVA纤维、碱激发剂、减水剂和水，将原料均匀混合后倒入模具中成型，再进行高温养护和恒温恒湿养护，得到所述高延性地聚物再生混凝土。本发明通过对地聚物混凝土进行纤维增韧处理，并配合再生砂形成缓冲层从而缓解砂料和胶凝材料之间的摩擦和冲击，改善地聚物混凝土的脆性，进而制备一种低碳经济、力学性能优异的具有应变硬化特性的高延性地聚物再生混凝土，实现了工业固体废料和废弃混凝土的循环利用。
High-ductility geopolymer recycled concrete and preparation method thereof
一种高延性地聚物再生混凝土及其制备方法
SHENG XUDONG (author) / HE MINYU (author) / ZHANG JUN (author) / WANG WEI (author) / CAO RUIXUE (author) / GUO JIANBING (author) / ZHANG SHUMAN (author) / QU FUCHUAN (author) / ZHU XINZHONG (author) / YAO DONGFANG (author)
2025-01-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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