Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength concrete and production process thereof
The invention relates to the field of concrete, and particularly discloses high-strength concrete and a production process thereof. The invention relates to a production process of high-strength concrete, which comprises the following steps: 1) putting wind sand in desert into a nitric acid solution with the concentration of 3-5%, soaking for 48 hours or more, and filtering to obtain acid-washed sand; 2) exposing and drying the pickled sand in the sun to obtain pretreated sand; 3) uniformly mixing the pretreated sand, stone powder and an adhesive to obtain a mixture; 4) injecting the mixture into a mold, and curing to form a mixed block; (5) crushing the mixed blocks, and sieving to obtain machine-made sand; the method comprises the following steps of (1) adding machine-made sand and an additive into the pre-mixed material, (2) adding the machine-made sand and the additive into the pre-mixed material, and uniformly stirring to obtain a concrete mixture, and (3) pouring the concrete mixture into a mold, and carrying out maintenance and demolding to obtain the high-strength concrete.The method has the advantages that the wind sand is fully utilized to relieve the river sand shortage phenomenon.
本发明涉及混凝土领域，具体公开了一种高强度混凝土及其生产工艺。一种高强度混凝土的生产工艺，包括：1），将沙漠中的风砂投入浓度为3%‑5%的硝酸溶液中浸泡48小时及以上，过滤，得酸洗砂；2），将酸洗砂在阳光下暴晒干燥，得预处理砂；3），将预处理砂、石粉、粘合剂混合均匀，得混合物；4），将混合物注入模具中固化形成混合块；5），破碎混合块，过筛，得机制砂；6），将粗骨料、水泥、粉煤灰、矿粉、水混合并搅拌均匀，得预拌料；7），向预拌料中投入机制砂、外加剂，搅拌均匀，得混凝土拌和料；8），浇筑混凝土拌和料至模具中，养护，脱模，得高强度混凝土。本发明具有充分利用风砂来缓解河砂短缺的现象的优点。
High-strength concrete and production process thereof
The invention relates to the field of concrete, and particularly discloses high-strength concrete and a production process thereof. The invention relates to a production process of high-strength concrete, which comprises the following steps: 1) putting wind sand in desert into a nitric acid solution with the concentration of 3-5%, soaking for 48 hours or more, and filtering to obtain acid-washed sand; 2) exposing and drying the pickled sand in the sun to obtain pretreated sand; 3) uniformly mixing the pretreated sand, stone powder and an adhesive to obtain a mixture; 4) injecting the mixture into a mold, and curing to form a mixed block; (5) crushing the mixed blocks, and sieving to obtain machine-made sand; the method comprises the following steps of (1) adding machine-made sand and an additive into the pre-mixed material, (2) adding the machine-made sand and the additive into the pre-mixed material, and uniformly stirring to obtain a concrete mixture, and (3) pouring the concrete mixture into a mold, and carrying out maintenance and demolding to obtain the high-strength concrete.The method has the advantages that the wind sand is fully utilized to relieve the river sand shortage phenomenon.
本发明涉及混凝土领域，具体公开了一种高强度混凝土及其生产工艺。一种高强度混凝土的生产工艺，包括：1），将沙漠中的风砂投入浓度为3%‑5%的硝酸溶液中浸泡48小时及以上，过滤，得酸洗砂；2），将酸洗砂在阳光下暴晒干燥，得预处理砂；3），将预处理砂、石粉、粘合剂混合均匀，得混合物；4），将混合物注入模具中固化形成混合块；5），破碎混合块，过筛，得机制砂；6），将粗骨料、水泥、粉煤灰、矿粉、水混合并搅拌均匀，得预拌料；7），向预拌料中投入机制砂、外加剂，搅拌均匀，得混凝土拌和料；8），浇筑混凝土拌和料至模具中，养护，脱模，得高强度混凝土。本发明具有充分利用风砂来缓解河砂短缺的现象的优点。
High-strength concrete and production process thereof
一种高强度混凝土及其生产工艺
LI ZAIHENG (Autor:in) / WANG QINGFEI (Autor:in) / HUANG ZHILONG (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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