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旨在扩大粉煤灰的利用，降低砼砌块成本，特研制了粉煤灰非烧结轻骨料及砼小型空心砌块新品种，以求获得进一步推广和应用。
In order to expand the utilization of fly ash and reduce the cost of concrete blocks, a new type of fly ash non-sintered lightweight aggregate and concrete hollow block are developed to obtain further promotion and application.