A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of anti-freezing recycled concrete and anti-freezing recycled concrete
The invention relates to the field of concrete materials, and particularly discloses a preparation method of anti-freezing recycled concrete and the anti-freezing recycled concrete. The preparation method of the anti-freezing recycled concrete comprises the following steps: crushing and screening waste concrete to obtain prefabricated coarse aggregate particles; fully soaking the prefabricated coarse aggregate particles in the graphene oxide dispersion liquid, then taking out the prefabricated coarse aggregate particles, and airing the prefabricated coarse aggregate particles until the surfaces of the prefabricated coarse aggregate particles are free of water to obtain recycled coarse aggregate; the anti-freezing recycled concrete is prepared by uniformly stirring 270-290 parts by weight of cement, 830-850 parts by weight of recycled coarse aggregate, 830-850 parts by weight of fine aggregate, 110-130 parts by weight of admixture, 40-50 parts by weight of waste foamed rubber powder, 170-180 parts by weight of water, 6-8 parts by weight of anti-freezing water reducer and 5-10 parts by weight of expansion anti-cracking agent. The anti-freezing recycled concrete prepared by the method disclosed by the invention not only has a good anti-freezing and thawing effect, but also has excellent mechanical strength.
本申请涉及混凝土材料领域，具体公开了一种防冻再生混凝土的制备方法及防冻再生混凝土。一种防冻再生混凝土的制备方法，包括如下步骤：将废旧混凝土经过破碎、筛选后，得到预制粗骨料颗粒；将预制粗骨料颗粒在氧化石墨烯分散液中充分浸泡，然后将其取出，晾干至表面无水后，得到再生粗骨料；以重量份数计，取270‑290份水泥、830‑850份再生粗骨料、830‑850份细骨料、110‑130份掺合料、40‑50份废旧发泡橡胶粉、170‑180份水、6‑8份防冻型减水剂以及5‑10份膨胀抗裂剂，搅拌均匀，得到防冻再生混凝土。采用本申请的方法制备的防冻再生混凝土不仅具有很好的抗冻融效果，而且还具有优异的力学强度。
Preparation method of anti-freezing recycled concrete and anti-freezing recycled concrete
The invention relates to the field of concrete materials, and particularly discloses a preparation method of anti-freezing recycled concrete and the anti-freezing recycled concrete. The preparation method of the anti-freezing recycled concrete comprises the following steps: crushing and screening waste concrete to obtain prefabricated coarse aggregate particles; fully soaking the prefabricated coarse aggregate particles in the graphene oxide dispersion liquid, then taking out the prefabricated coarse aggregate particles, and airing the prefabricated coarse aggregate particles until the surfaces of the prefabricated coarse aggregate particles are free of water to obtain recycled coarse aggregate; the anti-freezing recycled concrete is prepared by uniformly stirring 270-290 parts by weight of cement, 830-850 parts by weight of recycled coarse aggregate, 830-850 parts by weight of fine aggregate, 110-130 parts by weight of admixture, 40-50 parts by weight of waste foamed rubber powder, 170-180 parts by weight of water, 6-8 parts by weight of anti-freezing water reducer and 5-10 parts by weight of expansion anti-cracking agent. The anti-freezing recycled concrete prepared by the method disclosed by the invention not only has a good anti-freezing and thawing effect, but also has excellent mechanical strength.
本申请涉及混凝土材料领域，具体公开了一种防冻再生混凝土的制备方法及防冻再生混凝土。一种防冻再生混凝土的制备方法，包括如下步骤：将废旧混凝土经过破碎、筛选后，得到预制粗骨料颗粒；将预制粗骨料颗粒在氧化石墨烯分散液中充分浸泡，然后将其取出，晾干至表面无水后，得到再生粗骨料；以重量份数计，取270‑290份水泥、830‑850份再生粗骨料、830‑850份细骨料、110‑130份掺合料、40‑50份废旧发泡橡胶粉、170‑180份水、6‑8份防冻型减水剂以及5‑10份膨胀抗裂剂，搅拌均匀，得到防冻再生混凝土。采用本申请的方法制备的防冻再生混凝土不仅具有很好的抗冻融效果，而且还具有优异的力学强度。
Preparation method of anti-freezing recycled concrete and anti-freezing recycled concrete
一种防冻再生混凝土的制备方法及防冻再生混凝土
WANG HUI (author) / XIAO YUN (author) / MA SHUMEI (author) / LI TENGFEI (author) / CUI KUNDONG (author) / LIU CHUANHAI (author) / XIA XIUCHENG (author) / WANG ZEYANG (author) / ZHANG JUAN (author)
2022-04-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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