Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of ultrahigh-strength concrete
The invention discloses an ultrahigh-strength concrete preparation method, and relates to the technical field of concrete preparation, and the ultrahigh-strength concrete preparation method comprises the following steps: step 1, preparing concrete raw materials; step 2, preparing coarse aggregate; step 3, preparing fine aggregate; and 4, weighing the cement and the mineral admixture according to the proportion, putting the cement and the mineral admixture into a stirrer C, uniformly mixing to obtain a mixture A, weighing the coarse aggregate according to the proportion, uniformly mixing the coarse aggregate and the mixture A to obtain a mixture B, adding water and an additive into the mixture B, and stirring to uniformly mix. The superfine sand, the saltpeter and the crushed saltpeter are mixed to prepare the fine aggregate, the fine aggregate is added after the cement, the mineral admixture, the coarse aggregate, the additive and the water are mixed, and the heat generated in the mixing process of the cement and the water is absorbed by utilizing the characteristic that the saltpeter reacts with the water to absorb heat, so that the hydration phenomenon is avoided, and the cement and the water are mixed uniformly. Therefore, the situation that the strength of the concrete is affected by cracks generated by temperature rise in the concrete can be avoided.
本发明公开了一种超高强度混凝土制备方法，涉及混凝土制备技术领域，包括以下步骤：步骤一、配制混凝土原料；步骤二、制备粗集料；步骤三、制备细集料；步骤四、按照比例称取水泥与矿物参合料，并投入搅拌机C中以混合均匀，得到混合料A，再按照比例称取粗集料与混合料A混合均匀得到混合料B，接着向混合料B中加入水和外加剂，并搅拌使其均匀混合。本发明将特细砂与硝石、碎硝混合制成细集料，并在水泥与、矿物参合料、粗集料、外加剂和水混合之后，才将细集料加入，利用硝石与水反应吸热的特点，吸收水泥与水混合过程中产生的热量，以避免水化现象的产生，从而能够避免造成混凝土内部的温度上升而产生裂缝、影响混凝土强度的情况。
Preparation method of ultrahigh-strength concrete
The invention discloses an ultrahigh-strength concrete preparation method, and relates to the technical field of concrete preparation, and the ultrahigh-strength concrete preparation method comprises the following steps: step 1, preparing concrete raw materials; step 2, preparing coarse aggregate; step 3, preparing fine aggregate; and 4, weighing the cement and the mineral admixture according to the proportion, putting the cement and the mineral admixture into a stirrer C, uniformly mixing to obtain a mixture A, weighing the coarse aggregate according to the proportion, uniformly mixing the coarse aggregate and the mixture A to obtain a mixture B, adding water and an additive into the mixture B, and stirring to uniformly mix. The superfine sand, the saltpeter and the crushed saltpeter are mixed to prepare the fine aggregate, the fine aggregate is added after the cement, the mineral admixture, the coarse aggregate, the additive and the water are mixed, and the heat generated in the mixing process of the cement and the water is absorbed by utilizing the characteristic that the saltpeter reacts with the water to absorb heat, so that the hydration phenomenon is avoided, and the cement and the water are mixed uniformly. Therefore, the situation that the strength of the concrete is affected by cracks generated by temperature rise in the concrete can be avoided.
本发明公开了一种超高强度混凝土制备方法，涉及混凝土制备技术领域，包括以下步骤：步骤一、配制混凝土原料；步骤二、制备粗集料；步骤三、制备细集料；步骤四、按照比例称取水泥与矿物参合料，并投入搅拌机C中以混合均匀，得到混合料A，再按照比例称取粗集料与混合料A混合均匀得到混合料B，接着向混合料B中加入水和外加剂，并搅拌使其均匀混合。本发明将特细砂与硝石、碎硝混合制成细集料，并在水泥与、矿物参合料、粗集料、外加剂和水混合之后，才将细集料加入，利用硝石与水反应吸热的特点，吸收水泥与水混合过程中产生的热量，以避免水化现象的产生，从而能够避免造成混凝土内部的温度上升而产生裂缝、影响混凝土强度的情况。
Preparation method of ultrahigh-strength concrete
一种超高强度混凝土制备方法
SHEN XIN (Autor:in) / ZHANG ZUNYI (Autor:in) / YU KAIFU (Autor:in) / LAN RONGYUAN (Autor:in) / DAI QIUSONG (Autor:in) / ZHANG KAIQIANG (Autor:in) / LIAO YONGRONG (Autor:in) / JIANG QINGCHAO (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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