A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-shrinkage creep lightweight ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of building materials, and particularly discloses low-shrinkage creep lightweight ultra-high performance concrete and a preparation method thereof. The low-shrinkage creep lightweight ultra-high performance concrete is prepared from the following raw materials in parts by weight: 20 to 30 parts of modified mixed lightweight aggregate, 6 to 8 parts of polyacrylic acid water-absorbent resin, 24 to 36 parts of cement, 0.5 to 1 part of high-efficiency water reducing agent, 4 to 6 parts of mineral admixture, 16 to 24 parts of mixing water, 5 to 8 parts of natural fiber and 8 to 12 parts of modified steel fiber, the modified mixed lightweight aggregate is a mixture of modified pottery sand and glass beads; the preparation method of the low-shrinkage creep lightweight ultra-high performance concrete comprises the following steps: mixing the natural fibers and the modified steel fibers in the mixing water in advance, sequentially adding the rest raw materials, and uniformly stirring to obtain the low-shrinkage creep lightweight ultra-high performance concrete. The product provided by the invention can be used in the aspects of prefabricated cement concrete products, electric power construction projects and the like with strict use requirements, and has the advantages of small shrinkage creep and high compressive strength.
本申请涉及建筑材料技术领域，具体公开了一种低收缩徐变轻质超高性能混凝土及其制备方法。一种低收缩徐变轻质超高性能混凝土包括如下重量份原料：改性混合轻骨料20‑30份、聚丙烯酸吸水树脂6‑8份、水泥24‑36份、高效减水剂0.5‑1份、矿物掺合料4‑6份、拌合水16‑24份、天然纤维5‑8份、改性钢纤维8‑12份；所述改性混合轻骨料为改性陶砂与玻璃微珠的混合物；低收缩徐变轻质超高性能混凝土的制备方法为：预先在拌合水中混合天然纤维与改性钢纤维后依次加入剩余原料搅拌均匀得到。本申请的产品可用于使用要求严格的预制水泥混凝土制品、电力建设项目等方面，具有收缩徐变小，抗压强度高的优点。
Low-shrinkage creep lightweight ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of building materials, and particularly discloses low-shrinkage creep lightweight ultra-high performance concrete and a preparation method thereof. The low-shrinkage creep lightweight ultra-high performance concrete is prepared from the following raw materials in parts by weight: 20 to 30 parts of modified mixed lightweight aggregate, 6 to 8 parts of polyacrylic acid water-absorbent resin, 24 to 36 parts of cement, 0.5 to 1 part of high-efficiency water reducing agent, 4 to 6 parts of mineral admixture, 16 to 24 parts of mixing water, 5 to 8 parts of natural fiber and 8 to 12 parts of modified steel fiber, the modified mixed lightweight aggregate is a mixture of modified pottery sand and glass beads; the preparation method of the low-shrinkage creep lightweight ultra-high performance concrete comprises the following steps: mixing the natural fibers and the modified steel fibers in the mixing water in advance, sequentially adding the rest raw materials, and uniformly stirring to obtain the low-shrinkage creep lightweight ultra-high performance concrete. The product provided by the invention can be used in the aspects of prefabricated cement concrete products, electric power construction projects and the like with strict use requirements, and has the advantages of small shrinkage creep and high compressive strength.
本申请涉及建筑材料技术领域，具体公开了一种低收缩徐变轻质超高性能混凝土及其制备方法。一种低收缩徐变轻质超高性能混凝土包括如下重量份原料：改性混合轻骨料20‑30份、聚丙烯酸吸水树脂6‑8份、水泥24‑36份、高效减水剂0.5‑1份、矿物掺合料4‑6份、拌合水16‑24份、天然纤维5‑8份、改性钢纤维8‑12份；所述改性混合轻骨料为改性陶砂与玻璃微珠的混合物；低收缩徐变轻质超高性能混凝土的制备方法为：预先在拌合水中混合天然纤维与改性钢纤维后依次加入剩余原料搅拌均匀得到。本申请的产品可用于使用要求严格的预制水泥混凝土制品、电力建设项目等方面，具有收缩徐变小，抗压强度高的优点。
Low-shrinkage creep lightweight ultra-high performance concrete and preparation method thereof
一种低收缩徐变轻质超高性能混凝土及其制备方法
LI ZHENGFA (author) / AN NING (author) / ZHOU DESHENG (author) / WANG RUI (author) / LI HAN (author) / WANG FAN (author)
2024-04-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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