Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Super-early-strength recycled concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses super-early-strength recycled concrete and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 170-190 parts of water, 140-155 parts of caustic calcined magnesia powder, 20-40 parts of silica fume, 100-120 parts of magnesium chloride hexahydrate, 400-500 parts of natural aggregate, 1400-1520 parts of reinforced recycled aggregate and 6-10 parts of an admixture. The 3-d compressive strength of the super-early-strength recycled concrete can reach 70% or above of the 28-d compressive strength of the concrete, and the 7-d compressive strength of the super-early-strength recycled concrete can reach 90% of the 28-d compressive strength; and the 28-day compressive strength is close to the strength of ordinary Portland cement concrete, so engineering requirements can be completely met, the recycled concrete can be utilized to the maximum extent, resources are saved, and the environment is protected.
本发明属于建筑材料技术领域，公开了一种超早强再生混凝土及其制备方法，再生混凝土由包含以下重量份的原料制成：以质量份数计包括：水170~190份、轻烧镁粉140~155份、硅灰20~40份、六水氯化镁100~120份、天然集料400~500份、强化再生骨料1400~1520份、外加剂6~10份。一种超早强再生混凝土的3d抗压强度可达28d抗压强度的70%以上，7d抗压强度可达28d抗压强度的90%；且28天抗压强度接近普通硅酸盐水泥混凝土，完全可以满足工程需要，能够最大化地利用再生混凝土，节约资源，保护环境。
Super-early-strength recycled concrete and preparation method thereof
The invention belongs to the technical field of building materials, and discloses super-early-strength recycled concrete and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 170-190 parts of water, 140-155 parts of caustic calcined magnesia powder, 20-40 parts of silica fume, 100-120 parts of magnesium chloride hexahydrate, 400-500 parts of natural aggregate, 1400-1520 parts of reinforced recycled aggregate and 6-10 parts of an admixture. The 3-d compressive strength of the super-early-strength recycled concrete can reach 70% or above of the 28-d compressive strength of the concrete, and the 7-d compressive strength of the super-early-strength recycled concrete can reach 90% of the 28-d compressive strength; and the 28-day compressive strength is close to the strength of ordinary Portland cement concrete, so engineering requirements can be completely met, the recycled concrete can be utilized to the maximum extent, resources are saved, and the environment is protected.
本发明属于建筑材料技术领域，公开了一种超早强再生混凝土及其制备方法，再生混凝土由包含以下重量份的原料制成：以质量份数计包括：水170~190份、轻烧镁粉140~155份、硅灰20~40份、六水氯化镁100~120份、天然集料400~500份、强化再生骨料1400~1520份、外加剂6~10份。一种超早强再生混凝土的3d抗压强度可达28d抗压强度的70%以上，7d抗压强度可达28d抗压强度的90%；且28天抗压强度接近普通硅酸盐水泥混凝土，完全可以满足工程需要，能够最大化地利用再生混凝土，节约资源，保护环境。
Super-early-strength recycled concrete and preparation method thereof
一种超早强再生混凝土及其制备方法
HU YONG (Autor:in) / ZHAO HUA (Autor:in) / GUAN BOWEN (Autor:in) / MA ZICHEN (Autor:in) / TIAN QIAN (Autor:in) / DI WENJIN (Autor:in) / WANG AIPENG (Autor:in) / ZHANG SHUOWEN (Autor:in) / XUE XINGJIE (Autor:in) / FENG YURONG (Autor:in)
14.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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