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轻集料具有超高层建筑所需的轻质、隔热性，系一种新型的节能型材料，在建筑工程中应用较广，但过去生产的人造粉煤灰轻集料不足之处在于强度低。最近日本研制成功一种高强度人造粉煤灰轻集料。这种粉煤灰集料是在粉煤灰和炉废渣中加入玻璃粉和可塑性粘土混合，成球、烧结而成
The lightweight aggregate has the light weight and heat insulation required for a super high-rise building and is a new type of energy-saving material. It is widely used in construction projects. However, the shortcomings of artificial fly ash lightweight aggregate produced in the past are due to its strength. low. Recently, Japan successfully developed a high-strength artificial fly ash lightweight aggregate. The fly ash aggregate is formed by adding glass powder and plastic clay to the fly ash and the furnace residue to form a ball and sinter.