本文選題：膨脹珍珠巖 + 粉煤灰��； 參考：《中國地質(zhì)大學(北京)》2013年碩士論文

【摘要】：隨著人口的增加,資源的匱乏,中國越來越重視節(jié)能減排,其中建筑耗能約占社會能源的一半,因此,建筑節(jié)能在節(jié)能減排工程中占據(jù)著重要的地位,建筑節(jié)能方面的研究具有重大應用價值；近些年,因外墻保溫材料引起的火災層出不窮,使建筑防火越來越受到重視。由于膨脹珍珠巖具有輕質(zhì)、絕熱、吸音、無毒、不燃燒、無味等優(yōu)良性能,本研究擬以膨脹珍珠巖為主要原料制備無機墻體保溫材料,所合成的樣品具有良好的保溫性能和防火性能。本研究采用三種不同的粘結(jié)劑來制備膨脹珍珠巖保溫板,詳細情況如下：以磷酸二氫鋁溶液為粘結(jié)劑,膨脹珍珠巖為骨料,粉煤灰為補強劑制備了磷酸二氫鋁膨脹珍珠巖保溫板。通過第一輪單因素實驗、L9(34)正交實驗和第二輪單因素實驗確定了最佳工藝參數(shù)：成型壓力為1.0 MPa,膨脹珍珠巖和粉煤灰總質(zhì)量與磷酸二氫鋁溶液的質(zhì)量比為1：1,焙燒溫度為500℃,焙燒時間為1 h。粉煤灰摻量為膨脹珍珠巖總質(zhì)量的10%時,在所制備的樣品中性能最好,抗壓強度為0.46 Mpa,導熱系數(shù)為0.082 W/(m K),體積密度為259 kg/m3。以生石灰為粘結(jié)劑,膨脹珍珠巖為骨料,粉煤灰為補強劑制備了生石灰膨脹珍珠巖保溫板。生石灰摻量為其與生石灰總質(zhì)量的30%時,在所制備樣品中性能最好,抗壓強度為0.34 Mpa,導熱系數(shù)為0.084 W/(m K),體積密度為284 kg/m3。以水玻璃為粘結(jié)劑,膨脹珍珠巖為骨料,粉煤灰和KOH為補強劑制備水玻璃膨脹珍珠巖保溫板。通過L16(45)正交實驗,確定了最佳工藝參數(shù)：焙燒溫度為500℃,焙燒時間為1 h,粉煤灰和膨脹珍珠巖的質(zhì)量比為1：10,膨脹珍珠巖和水玻璃的質(zhì)量比為2：1,KOH和水玻璃的質(zhì)量比為1：3。最優(yōu)工藝參數(shù)條件下制備的水玻璃膨脹珍珠巖保溫板的抗壓強度、導熱系數(shù)和體積密度分別為0.47 MPa、0.071 W/(m K)和257 kg/m3。樣品的XRD和掃描電鏡結(jié)果表明,樣品中添加粉煤灰后,樣品中出現(xiàn)莫來石相,樣品間的空隙變小,使樣品的強度有所提高,樣品的保溫性能有所下降。所制備樣品的性能達到了膨脹珍珠巖絕熱樣品的國家標準350號合格品的技術(shù)指標。
[Abstract]:With the increase of population and the scarcity of resources, China pays more and more attention to energy conservation and emission reduction, among which the energy consumption of buildings accounts for about half of the social energy. Therefore, building energy conservation plays an important role in energy-saving and emission reduction projects. The research on building energy conservation has great application value. In recent years, the fire caused by thermal insulation material of exterior wall has emerged in endlessly, which makes building fire prevention more and more important. As expanded perlite is light, adiabatic, sound-absorbing, non-toxic, non-burning and tasteless, this study intends to prepare inorganic wall insulation material with expanded perlite as the main raw material. The synthesized samples have good thermal insulation and fire resistance. In this study, three different binders were used to prepare expanded perlite thermal insulation board. The details are as follows: aluminum dihydrogen phosphate solution is used as binder, and expanded perlite is used as aggregate. The expanded perlite thermal insulation board of aluminum dihydrogen phosphate was prepared by using fly ash as reinforcing agent. The optimum technological parameters were determined by the first single factor experiment and the second single factor experiment: the molding pressure was 1.0 MPA, the mass ratio of expanded perlite and fly ash to aluminum dihydrogen phosphate solution was 1: 1, and the calcination temperature was 500 鈩，

本文編號：1988670