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炭纤维增强混凝土能用来感知温度,其因在于短炭纤维的P-型传导性引起的塞贝克(Seebeck)效应所致。通过测量添加炭纤维或矿质掺和物(飞灰、硅土粉)前后六种波特兰水泥基混凝土的热电功率,研究了炭纤维增强轻质混凝土热敏的能力及其矿质掺合物对Seebeck效应的影响。结果表明:炭纤维增强轻质混凝土具有类似于炭纤维增强标准混凝土的Seebeck效应,只是Seebeck系数因掺合了矿粉而减低。掺有矿粉的炭纤维增强轻质混凝土可用作建筑物的热传感器.
Carbon fiber reinforced concrete can be used to sense temperature due to the Seebeck effect due to P-type conductivity of short carbon fibers. By measuring the thermoelectric power of six kinds of Portland cement-based concrete before and after carbon fiber or mineral admixture (fly ash, silica powder), the thermal sensitivity of carbon fiber reinforced lightweight concrete and the effects of mineral admixtures Seebeck effect. The results show that the Seebeck effect of carbon fiber reinforced lightweight concrete is similar to that of carbon fiber reinforced standard concrete, except that the Seebeck coefficient is reduced due to the blending of mineral powder. Mineral fiber-doped carbon fiber reinforced lightweight concrete can be used as a building’s thermal sensor.