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A platform for research: civil engineering, architecture and urbanism
Fair-faced concrete and fair-faced concrete building construction process
The invention discloses fair-faced concrete and a fair-faced concrete building construction technology, and relates to the technical field of concrete.The fair-faced concrete is prepared from, by weight, 360-400 parts of Portland cement with the strength grade larger than 42.5, 850-900 parts of gravel with the particle size of 5-25 mm and the mud content smaller than 0.8%, 880-910 parts of medium-coarse sand with the fineness modulus larger than 2.5 and the mud content smaller than 2% and 80-100 parts of fly ash. 140-170 parts of water, 9-13 parts of a water reducing agent and 7.5-11 parts of other components. The fair-faced concrete manufactured by adopting the components according to the weight part ratio and the process is high in strength and good in surface forming effect, after the concrete is poured to the surface elevation, one-time compound vibration must be carried out, the compound vibration time is generally controlled to be about 20-30 minutes, and the concrete is not prone to falling off. And therefore, the joint of the template, the bulkhead part of the split bolt and the like are tight and do not sand, and the surface of the concrete after the template is removed is smoother and smoother.
本申请公开了一种清水混凝土及清水混凝土建筑施工工艺，涉及混凝土技术领域，包括如下重量份数的组分：强度等级大于42.5的硅酸盐水泥360‑400份，5‑25mm粒径且含泥量小于0.8％的碎石850‑900份，细度模数2.5以上且含泥量小于2％的中粗砂880‑910份，粉煤灰80‑100份，水140‑170份，减水剂9‑13份，其他7.5‑11份。本申请通过采用前述组分及其重量份数配比和工艺来制造出的清水混泥土，强度高、表面成型效果也好，在混凝土浇筑至面标高后，必须进行一次复振，复振的时间一般控制在20‑30分钟左右后进行，以确保模板接缝处、对拉螺栓闷头部位等严密不起砂，拆模后的混凝土表面也会更加平整、光洁。
Fair-faced concrete and fair-faced concrete building construction process
The invention discloses fair-faced concrete and a fair-faced concrete building construction technology, and relates to the technical field of concrete.The fair-faced concrete is prepared from, by weight, 360-400 parts of Portland cement with the strength grade larger than 42.5, 850-900 parts of gravel with the particle size of 5-25 mm and the mud content smaller than 0.8%, 880-910 parts of medium-coarse sand with the fineness modulus larger than 2.5 and the mud content smaller than 2% and 80-100 parts of fly ash. 140-170 parts of water, 9-13 parts of a water reducing agent and 7.5-11 parts of other components. The fair-faced concrete manufactured by adopting the components according to the weight part ratio and the process is high in strength and good in surface forming effect, after the concrete is poured to the surface elevation, one-time compound vibration must be carried out, the compound vibration time is generally controlled to be about 20-30 minutes, and the concrete is not prone to falling off. And therefore, the joint of the template, the bulkhead part of the split bolt and the like are tight and do not sand, and the surface of the concrete after the template is removed is smoother and smoother.
本申请公开了一种清水混凝土及清水混凝土建筑施工工艺，涉及混凝土技术领域，包括如下重量份数的组分：强度等级大于42.5的硅酸盐水泥360‑400份，5‑25mm粒径且含泥量小于0.8％的碎石850‑900份，细度模数2.5以上且含泥量小于2％的中粗砂880‑910份，粉煤灰80‑100份，水140‑170份，减水剂9‑13份，其他7.5‑11份。本申请通过采用前述组分及其重量份数配比和工艺来制造出的清水混泥土，强度高、表面成型效果也好，在混凝土浇筑至面标高后，必须进行一次复振，复振的时间一般控制在20‑30分钟左右后进行，以确保模板接缝处、对拉螺栓闷头部位等严密不起砂，拆模后的混凝土表面也会更加平整、光洁。
Fair-faced concrete and fair-faced concrete building construction process
一种清水混凝土及清水混凝土建筑施工工艺
DU QUANLIN (author) / GAO YILONG (author) / DUAN ZHENFENG (author) / WU JINBAO (author)
2022-10-11
Patent
Electronic Resource
Chinese
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