A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Super-early-strength building solid waste regenerated sand powder concrete and preparation method thereof
The invention relates to the technical field of recycled concrete preparation, in particular to super-early-strength building solid waste recycled sand powder concrete and a preparation method thereof. The regenerated sand powder is made into a regenerated sand and early-strength gelling component through ultrasonic vibration screening, mechanochemical modification and physical dispersion, so that the adverse effect of direct addition of the regenerated sand powder on the workability of the concrete is avoided, and the micro-filling effect, the nucleating agent effect and the hydration reaction activity are fully exerted; the early strength performance and workability of the regenerated sand powder concrete are improved, natural sand and cement are replaced with the regenerated sand and early strength gelling component, all-component efficient utilization of regenerated sand powder solid waste resources is achieved, consumption of natural resources such as the natural sand is reduced, rapid demolding and steam-free curing of concrete prefabricated parts can be met, the production efficiency of the prefabricated part is improved, the production energy consumption is reduced, and the production cost is saved.
本发明涉及再生混凝土制备技术领域，具体涉及一种超早强建筑固废再生砂粉混凝土及其制备方法；通过超声振动筛分、机械化学改性和物理分散的方式将再生砂粉制备成再生砂和早强胶凝组分，避免了直接加入再生砂粉对混凝土工作性的不利影响，还充分发挥了微填充效应、晶核剂效应以及水化反应活性，提高了再生砂粉混凝土的早强性能和工作性，并采用再生砂和早强胶凝组分替代天然砂和水泥，实现了再生砂粉固废资源的全组分高效利用，减少了天然砂等自然资源的消耗，还能够满足混凝土预制构件的快速脱模和免蒸汽养护，有利于提高预制构件的生产效率，降低生产能耗，节约生产成本。
Super-early-strength building solid waste regenerated sand powder concrete and preparation method thereof
The invention relates to the technical field of recycled concrete preparation, in particular to super-early-strength building solid waste recycled sand powder concrete and a preparation method thereof. The regenerated sand powder is made into a regenerated sand and early-strength gelling component through ultrasonic vibration screening, mechanochemical modification and physical dispersion, so that the adverse effect of direct addition of the regenerated sand powder on the workability of the concrete is avoided, and the micro-filling effect, the nucleating agent effect and the hydration reaction activity are fully exerted; the early strength performance and workability of the regenerated sand powder concrete are improved, natural sand and cement are replaced with the regenerated sand and early strength gelling component, all-component efficient utilization of regenerated sand powder solid waste resources is achieved, consumption of natural resources such as the natural sand is reduced, rapid demolding and steam-free curing of concrete prefabricated parts can be met, the production efficiency of the prefabricated part is improved, the production energy consumption is reduced, and the production cost is saved.
本发明涉及再生混凝土制备技术领域，具体涉及一种超早强建筑固废再生砂粉混凝土及其制备方法；通过超声振动筛分、机械化学改性和物理分散的方式将再生砂粉制备成再生砂和早强胶凝组分，避免了直接加入再生砂粉对混凝土工作性的不利影响，还充分发挥了微填充效应、晶核剂效应以及水化反应活性，提高了再生砂粉混凝土的早强性能和工作性，并采用再生砂和早强胶凝组分替代天然砂和水泥，实现了再生砂粉固废资源的全组分高效利用，减少了天然砂等自然资源的消耗，还能够满足混凝土预制构件的快速脱模和免蒸汽养护，有利于提高预制构件的生产效率，降低生产能耗，节约生产成本。
Super-early-strength building solid waste regenerated sand powder concrete and preparation method thereof
一种超早强建筑固废再生砂粉混凝土及其制备方法
BIAN SHUGANG (author) / LIU CHUANBEI (author) / ZHANG LIHUA (author) / LIU LAIBAO (author)
2021-09-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-efficiency preparation system for waste concrete regenerated sand powder
| European Patent Office | 2021
Building solid waste regenerated material and preparation method thereof
| European Patent Office | 2024
Foam concrete containing construction waste regenerated micro powder and preparation method thereof
| European Patent Office | 2023
Building solid waste regenerated vegetation low-alkalinity concrete and manufacturing method thereof
| European Patent Office | 2021
Building solid waste regenerated composite roadbed filler and preparation method thereof
| European Patent Office | 2020