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以白炭黑(即沉淀二氧化硅)为主要原材料,添加胶凝材料高贝利特水泥熟料后拌合,掺入膨胀剂提高抗裂性能,加入短切碳纤维干拌成混合粉料;在粉料中加入一定量的水及高性能减水剂制成混合料浆,将料浆浇筑入立体三维玻璃纤维网架模具中,制备出具有一定强度的新型建筑保温块体材料;常温(即25℃)常压下,分别检测块体材料样品的密度、抗压强度、热导率。结果表明,干燥后的块体样品平均密度为262kg/m3、平均抗压强度为2.1 MPa、热导率为0.056 W/(m·K)。
Using silica (ie, precipitated silica) as the main raw material, adding high-belite cement clinker which is a cementing material and then mixing, adding an expansive agent to improve anti-cracking performance, adding dry chopped carbon fiber into a mixed powder; Adding a certain amount of water and high-performance water-reducing agent into the powder material to prepare a mixed slurry, pouring the slurry into a three-dimensional glass fiber grid mold, and preparing a new type of building block material with a certain strength; That is, 25 ℃) under atmospheric pressure, respectively, the density of bulk material samples were tested, compressive strength, thermal conductivity. The results show that the average density of the dried block samples is 262 kg / m3, the average compressive strength is 2.1 MPa and the thermal conductivity is 0.056 W / (m · K).