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A platform for research: civil engineering, architecture and urbanism
Production method of green building material recycled concrete
The invention discloses a green building material recycled concrete production method, which comprises: crushing and screening waste concrete, spreading on a screen, uniformly spraying calcium lactate powder, spraying a bacillus bacterial liquid, standing for 3 weeks, and overturning once every week during the period to obtain coarse aggregate particles; fully soaking the coarse aggregate particles in a mixed solution added with a high-activity fluorine titanium substance, sodium diethylenetriamine pentacarboxylic acid and polyhydric alcohol, fishing out, and airing until the surface is free of water, so as to obtain a recycled coarse aggregate; the recycled concrete is prepared by uniformly stirring the following components in parts by weight: 200-250 parts of cement, 630-650 parts of recycled coarse aggregate, 630-650 parts of fine aggregate, 30-40 parts of nano silicon dioxide fiber strings, 40-50 parts of waste plastic blasting beads, 170-180 parts of water, 6-8 parts of high-performance water reducing agent and 5-10 parts of coal ash. The concrete obtained by the invention has excellent early-stage crack resistance and mechanical properties.
本发明公开了一种绿色建筑材料再生混凝土的生产方法，包括如下步骤：将废旧混凝土经过破碎、筛选后，平铺在筛网上，均匀喷洒乳酸钙粉，并喷洒芽孢杆菌菌液，静置3周后，期间每一周翻动一次，得粗骨料颗粒；将粗骨料颗粒置于添加有高活性氟钛物、二乙烯三胺五羧酸钠、多元醇的混合液中充分浸泡，捞出，晾干至表面无水后，得到再生粗骨料；以重量份数计，取200～250份水泥、630～650份再生粗骨料、630～650份细骨料、30～40份纳米二氧化硅纤维串、40～50份废旧塑料爆珠、170～180份水、6～8份高性能减水剂、5～10份粉煤灰，搅拌均匀，得到再生混凝土。本发明所得的混凝土具有优良的早期抗裂性能和力学性能。
Production method of green building material recycled concrete
The invention discloses a green building material recycled concrete production method, which comprises: crushing and screening waste concrete, spreading on a screen, uniformly spraying calcium lactate powder, spraying a bacillus bacterial liquid, standing for 3 weeks, and overturning once every week during the period to obtain coarse aggregate particles; fully soaking the coarse aggregate particles in a mixed solution added with a high-activity fluorine titanium substance, sodium diethylenetriamine pentacarboxylic acid and polyhydric alcohol, fishing out, and airing until the surface is free of water, so as to obtain a recycled coarse aggregate; the recycled concrete is prepared by uniformly stirring the following components in parts by weight: 200-250 parts of cement, 630-650 parts of recycled coarse aggregate, 630-650 parts of fine aggregate, 30-40 parts of nano silicon dioxide fiber strings, 40-50 parts of waste plastic blasting beads, 170-180 parts of water, 6-8 parts of high-performance water reducing agent and 5-10 parts of coal ash. The concrete obtained by the invention has excellent early-stage crack resistance and mechanical properties.
本发明公开了一种绿色建筑材料再生混凝土的生产方法，包括如下步骤：将废旧混凝土经过破碎、筛选后，平铺在筛网上，均匀喷洒乳酸钙粉，并喷洒芽孢杆菌菌液，静置3周后，期间每一周翻动一次，得粗骨料颗粒；将粗骨料颗粒置于添加有高活性氟钛物、二乙烯三胺五羧酸钠、多元醇的混合液中充分浸泡，捞出，晾干至表面无水后，得到再生粗骨料；以重量份数计，取200～250份水泥、630～650份再生粗骨料、630～650份细骨料、30～40份纳米二氧化硅纤维串、40～50份废旧塑料爆珠、170～180份水、6～8份高性能减水剂、5～10份粉煤灰，搅拌均匀，得到再生混凝土。本发明所得的混凝土具有优良的早期抗裂性能和力学性能。
Production method of green building material recycled concrete
一种绿色建筑材料再生混凝土的生产方法
ZHANG YANHE (author) / MA SHIHAI (author) / SHI BAOZHU (author) / WANG YANXIU (author)
2023-05-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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