【Daily Question】【Civil Engineering Version 20180530】

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Which of the following statements regarding building insulation materials is correct? ( ) A. Rock wool, slag wool, glass wool, expanded perlite, and ceramic aggregate hollow blocks all belong to insulating materials. B. Rock wool products possess excellent properties such as heat retention, insulation, sound absorption, heat resistance, non-flammability, as well as good chemical stability; they are widely used in building structures, pipelines, storage tanks, boilers, and other applications where heat retention, insulation, and sound isolation are required. C. Slag wool can be used in industrial and civil construction projects, as well as in pipelines and boilers, where heat retention, insulation, and sound isolation are necessary. D. Foam asbestos is suitable for use in building structures for purposes such as heat retention, insulation, sound absorption, and vibration damping, as well as in various thermal pipelines, thermal equipment, and refrigeration systems. Answer: D 【Explanation】Insulating materials include rock wool and its products, slag wool and its products, glass wool and its products, expanded perlite and its products, expanded vermiculite and its products, foam plastics, microporous calcium silicate products, foam asbestos, and aluminum foil corrugated paper insulation panels. Rock wool products possess excellent properties such as thermal insulation, heat resistance, sound absorption, fire resistance, as well as good chemical stability, making them suitable for use in building exterior walls. Slag wool products feature low apparent density, low thermal conductivity, sound absorption, corrosion resistance, moth resistance, and good chemical stability. They are widely used in building structures, pipes, storage tanks, boilers, and other applications where insulation, heat isolation, and soundproofing are required. Foam asbestos is suitable for use in areas related to insulation, heat isolation, sound absorption, and vibration prevention in building construction, as well as in various thermal pipelines, thermal equipment, and refrigeration equipment.