Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-made lightweight aggregate, lightweight ultrahigh-strength concrete and preparation method
The invention discloses self-made lightweight aggregate, lightweight ultrahigh-strength concrete and a preparation method, and belongs to the technical field of building materials. The self-made lightweight aggregate comprises recycled coarse aggregate and recycled fine aggregate, and each of the recycled coarse aggregate and the recycled fine aggregate comprises the following components in parts by weight: 500-600 parts of cement, 150-300 parts of silica fume, 250-400 parts of glass beads, 25-40 parts of a polycarboxylate superplasticizer and 160-180 parts of water. The raw materials of the self-made lightweight aggregate do not contain substances with large density such as quartz sand, and the apparent density of the self-made lightweight aggregate can be as low as 1.25-1.45 g/cm < 3 >; by using the self-made lightweight aggregate, the volume weight of the concrete can be greatly reduced; the compressive strength of the concrete prepared from the self-made lightweight aggregate can reach 100-130 MPa under the condition that the capacity is 1300-1500 kg/m < 3 >, and the drying shrinkage in 60 days is smaller than 300 * 10 <-6 >.
本发明公开一种自制轻骨料、轻质超高强混凝土及制备方法，属于建筑材料技术领域；所述自制轻骨料包括再生粗骨料和再生细骨料，所述再生粗骨料和再生细骨料均包括以下重量份的各组分：水泥500～600份，硅灰150～300份，玻璃微珠250～400份，聚羧酸减水剂25～40份，水160～180份。本发明的自制轻骨料的原料中不含有石英砂等密度大的物质，其表观密度可以小至1.25～1.45g/cm3；使用本发明的自制轻骨料可以大幅度降低混凝土的容重；使用本发明的自制轻骨料制备的混凝土在容量为1300～1500kg/m3的情况下，抗压强度可达到100～130MPa，60d干燥收缩小于300*10‑6。
Self-made lightweight aggregate, lightweight ultrahigh-strength concrete and preparation method
The invention discloses self-made lightweight aggregate, lightweight ultrahigh-strength concrete and a preparation method, and belongs to the technical field of building materials. The self-made lightweight aggregate comprises recycled coarse aggregate and recycled fine aggregate, and each of the recycled coarse aggregate and the recycled fine aggregate comprises the following components in parts by weight: 500-600 parts of cement, 150-300 parts of silica fume, 250-400 parts of glass beads, 25-40 parts of a polycarboxylate superplasticizer and 160-180 parts of water. The raw materials of the self-made lightweight aggregate do not contain substances with large density such as quartz sand, and the apparent density of the self-made lightweight aggregate can be as low as 1.25-1.45 g/cm < 3 >; by using the self-made lightweight aggregate, the volume weight of the concrete can be greatly reduced; the compressive strength of the concrete prepared from the self-made lightweight aggregate can reach 100-130 MPa under the condition that the capacity is 1300-1500 kg/m < 3 >, and the drying shrinkage in 60 days is smaller than 300 * 10 <-6 >.
本发明公开一种自制轻骨料、轻质超高强混凝土及制备方法，属于建筑材料技术领域；所述自制轻骨料包括再生粗骨料和再生细骨料，所述再生粗骨料和再生细骨料均包括以下重量份的各组分：水泥500～600份，硅灰150～300份，玻璃微珠250～400份，聚羧酸减水剂25～40份，水160～180份。本发明的自制轻骨料的原料中不含有石英砂等密度大的物质，其表观密度可以小至1.25～1.45g/cm3；使用本发明的自制轻骨料可以大幅度降低混凝土的容重；使用本发明的自制轻骨料制备的混凝土在容量为1300～1500kg/m3的情况下，抗压强度可达到100～130MPa，60d干燥收缩小于300*10‑6。
Self-made lightweight aggregate, lightweight ultrahigh-strength concrete and preparation method
一种自制轻骨料、轻质超高强混凝土及制备方法
ZHAO RIXU (Autor:in) / BAO MING (Autor:in) / WANG JUN (Autor:in) / XIONG LONG (Autor:in) / JIN HONGCHENG (Autor:in) / HUANG CAN (Autor:in) / ZHOU BORU (Autor:in) / YU KUN (Autor:in) / LI XING (Autor:in) / XING JUXIANG (Autor:in)
15.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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