A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Geopolymer barite radiation protection concrete and preparation method thereof
The invention relates to geopolymer barite radiation protection concrete and a preparation method thereof, and the geopolymer barite radiation protection concrete comprises the following components in parts by mass: 200 to 300 parts of cement, 600 to 800 parts of geopolymer aggregate, 1400 to 1600 parts of barite, 1000 to 1200 parts of heavy crystal sand, 30 to 40 parts of fiber, 200 to 240 parts of water and 5 to 10 parts of a water reducing agent. The geopolymer aggregate is obtained by reacting fly ash, mineral powder, an alkali activator and water, carrying out hardening forming, crushing, screening, sealing and storing, and the strength and fracture toughness of the geopolymer aggregate are lower than those of barite aggregate. The strength and fracture toughness of the geopolymer aggregate are lower than those of barite aggregate, and the geopolymer aggregate is added into a cement matrix to induce cracks to develop at the geopolymer aggregate, so that the cracks are prevented from developing along an aggregate-cement matrix interface, the concrete is promoted to generate a saturated multi-crack cracking phenomenon, and the toughness of the barite anti-radiation concrete is further enhanced.
本发明涉及一种地聚合物重晶石防辐射混凝土及其制备方法，该地聚合物重晶石防辐射混凝土按照质量份数比，包括水泥200‑300份、地聚合物骨料600‑800份、重晶石1400‑1600份、重晶砂1000‑1200份、纤维30‑40份、水200‑240份、减水剂5‑10份；地聚合物骨料由粉煤灰、矿粉、碱激发剂和水反应，硬化成型后破碎、筛分、密封保存后得到，地聚合物骨料的强度及断裂韧性低于重晶石骨料。发明中地聚合物骨料的强度及断裂韧性低于重晶石骨料，将其加入到水泥基体中，诱使裂缝在地聚合物骨料处开展，从而避免裂缝沿骨料‑水泥基体界面开展，促使混凝土产生饱和多缝开裂现象，进而增强重晶石防辐射混凝土的韧性。
Geopolymer barite radiation protection concrete and preparation method thereof
The invention relates to geopolymer barite radiation protection concrete and a preparation method thereof, and the geopolymer barite radiation protection concrete comprises the following components in parts by mass: 200 to 300 parts of cement, 600 to 800 parts of geopolymer aggregate, 1400 to 1600 parts of barite, 1000 to 1200 parts of heavy crystal sand, 30 to 40 parts of fiber, 200 to 240 parts of water and 5 to 10 parts of a water reducing agent. The geopolymer aggregate is obtained by reacting fly ash, mineral powder, an alkali activator and water, carrying out hardening forming, crushing, screening, sealing and storing, and the strength and fracture toughness of the geopolymer aggregate are lower than those of barite aggregate. The strength and fracture toughness of the geopolymer aggregate are lower than those of barite aggregate, and the geopolymer aggregate is added into a cement matrix to induce cracks to develop at the geopolymer aggregate, so that the cracks are prevented from developing along an aggregate-cement matrix interface, the concrete is promoted to generate a saturated multi-crack cracking phenomenon, and the toughness of the barite anti-radiation concrete is further enhanced.
本发明涉及一种地聚合物重晶石防辐射混凝土及其制备方法，该地聚合物重晶石防辐射混凝土按照质量份数比，包括水泥200‑300份、地聚合物骨料600‑800份、重晶石1400‑1600份、重晶砂1000‑1200份、纤维30‑40份、水200‑240份、减水剂5‑10份；地聚合物骨料由粉煤灰、矿粉、碱激发剂和水反应，硬化成型后破碎、筛分、密封保存后得到，地聚合物骨料的强度及断裂韧性低于重晶石骨料。发明中地聚合物骨料的强度及断裂韧性低于重晶石骨料，将其加入到水泥基体中，诱使裂缝在地聚合物骨料处开展，从而避免裂缝沿骨料‑水泥基体界面开展，促使混凝土产生饱和多缝开裂现象，进而增强重晶石防辐射混凝土的韧性。
Geopolymer barite radiation protection concrete and preparation method thereof
一种地聚合物重晶石防辐射混凝土及其制备方法
ZHU KUN (author) / ZHU MINTAO (author) / GAO SHUANGSHUANG (author) / QU WEI (author) / WANG LI (author) / ZHANG YUQIAN (author) / GU WEIHONG (author)
2024-03-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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