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A platform for research: civil engineering, architecture and urbanism
High-performance anti-crack concrete and preparation process thereof
The invention discloses high-performance anti-cracking concrete, which is prepared from 30 to 50 parts of cement, 60 to 90 parts of coarse aggregate, 30 to 50 parts of fine aggregate, 20 to 40 parts of water, 3 to 5 parts of water reducing agent and 10 to 15 parts of anti-cracking agent. The anti-cracking agent is prepared from 5 to 10 parts of nano aluminum oxide, 5 to 8 parts of fly ash, 3 to 5 parts of semi-hydrated gypsum and 3 to 6 parts of dihydrate gypsum. The invention also discloses a preparation process of the high-performance anti-crack concrete, which comprises the following steps: step 1, taking 5-10 parts by mass of nano aluminum oxide, 5-8 parts by mass of fly ash, 3-5 parts by mass of semi-hydrated gypsum and 3-6 parts by mass of dihydrate gypsum, crushing into powder in a ball mill, and uniformly mixing to obtain an anti-crack agent; step 2, taking 60-90 parts by mass of coarse aggregate and 30-50 parts by mass of fine aggregate, cleaning and drying; 3, 30-50 parts of cement, 20-40 parts of water, the coarse aggregate and the fine aggregate are put into a stirring machine to be stirred; and 4, adding the anti-cracking agent and the water reducing agent prepared in the step 1 into a stirrer, and stirring to prepare the finished product concrete.
本发明公开了一种高性能抗裂混凝土，包括水泥30‑50份、粗骨料60‑90份、细骨料30‑50份、水20‑40份、减水剂3‑5份、抗裂剂10‑15份。所述抗裂剂包括纳米氧化铝5‑10份、粉煤灰5‑8份、半水石膏3‑5份、二水石膏3‑6份。本发明还公开了一种高性能抗裂混凝土的制备工艺，包括下述步骤：步骤1：按质量份数取纳米氧化铝5‑10份、粉煤灰5‑8份、半水石膏3‑5份、二水石膏3‑6份在球磨机中粉碎成粉状，混合均匀制得抗裂剂；步骤2：按质量份数取粗骨料60‑90份、细骨料30‑50份清洗烘干；步骤3：将水泥30‑50份、水20‑40份、粗骨料和细骨料投入搅拌机中搅拌；步骤4：将步骤1中制得的抗裂剂和减水剂加入搅拌机中搅拌，制得成品混凝土。
High-performance anti-crack concrete and preparation process thereof
The invention discloses high-performance anti-cracking concrete, which is prepared from 30 to 50 parts of cement, 60 to 90 parts of coarse aggregate, 30 to 50 parts of fine aggregate, 20 to 40 parts of water, 3 to 5 parts of water reducing agent and 10 to 15 parts of anti-cracking agent. The anti-cracking agent is prepared from 5 to 10 parts of nano aluminum oxide, 5 to 8 parts of fly ash, 3 to 5 parts of semi-hydrated gypsum and 3 to 6 parts of dihydrate gypsum. The invention also discloses a preparation process of the high-performance anti-crack concrete, which comprises the following steps: step 1, taking 5-10 parts by mass of nano aluminum oxide, 5-8 parts by mass of fly ash, 3-5 parts by mass of semi-hydrated gypsum and 3-6 parts by mass of dihydrate gypsum, crushing into powder in a ball mill, and uniformly mixing to obtain an anti-crack agent; step 2, taking 60-90 parts by mass of coarse aggregate and 30-50 parts by mass of fine aggregate, cleaning and drying; 3, 30-50 parts of cement, 20-40 parts of water, the coarse aggregate and the fine aggregate are put into a stirring machine to be stirred; and 4, adding the anti-cracking agent and the water reducing agent prepared in the step 1 into a stirrer, and stirring to prepare the finished product concrete.
本发明公开了一种高性能抗裂混凝土，包括水泥30‑50份、粗骨料60‑90份、细骨料30‑50份、水20‑40份、减水剂3‑5份、抗裂剂10‑15份。所述抗裂剂包括纳米氧化铝5‑10份、粉煤灰5‑8份、半水石膏3‑5份、二水石膏3‑6份。本发明还公开了一种高性能抗裂混凝土的制备工艺，包括下述步骤：步骤1：按质量份数取纳米氧化铝5‑10份、粉煤灰5‑8份、半水石膏3‑5份、二水石膏3‑6份在球磨机中粉碎成粉状，混合均匀制得抗裂剂；步骤2：按质量份数取粗骨料60‑90份、细骨料30‑50份清洗烘干；步骤3：将水泥30‑50份、水20‑40份、粗骨料和细骨料投入搅拌机中搅拌；步骤4：将步骤1中制得的抗裂剂和减水剂加入搅拌机中搅拌，制得成品混凝土。
High-performance anti-crack concrete and preparation process thereof
一种高性能抗裂混凝土及其制备工艺
YUAN ZHI (author) / ZHANG ZUOGUI (author) / ZHANG CHAO (author)
2022-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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