A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing aerated concrete from lead-zinc ore smelting slag-steel slag
The invention discloses a method for preparing aerated concrete from lead-zinc ore smelting slag-steel slag. The raw materials comprise, by weight, 15-20% of cement, 10-18% of lime, 35-55% of lead-zinc ore smelting slag, 15-25% of steel slag and 2-6% of desulfurized gypsum, the water-material ratio is 0.50-0.60, and the aluminum powder paste accounts for 0.10-0.15% of the total weight of the dry material. The lead-zinc ore smelting slag-steel slag aerated concrete block is prepared by the processes of ultrafine grinding of raw materials, batching, rapid stirring, pouring, constant-temperaturestatic curing and gas forming, cutting, autoclaved curing and the like. The autoclaved curing process system is as follows: heating is carried out for 2h to reach a temperature of 185-190DEG C, meanwhile the atmospheric pressure reaches 1.2-1.25MPa, a constant temperature and a constant pressure are kept for 6.5-8h, then the temperature and the pressure are reduced for 2h to normal temperature andnormal pressure, the absolute dry compressive strength of the finally obtained product reaches 4.6-6.1MPa, and the dry volume density is 542-586kg/m<3>. The invention not only provides a lightweightand high-strength aerated concrete product for the building material market, but also finds a new way for resource utilization of lead-zinc ore smelting slag and steel slag, reduces the production cost of aerated concrete enterprises, and improves the economic benefits and social security and environmental protection benefits of enterprises.
本发明公开了一种铅锌矿冶炼渣—钢渣制备加气混凝土的方法。原料重量百分比：水泥15～20％，石灰10～18％，铅锌矿冶炼渣35～55％，钢渣15～25％，脱硫石膏2～6％，水料比为0.50～0.60，铝粉膏为干料总重量的0.10～0.15％。铅锌矿冶炼渣—钢渣加气混凝土砌块经原料超细粉磨、配料、快速搅拌、浇注、恒温静养发气、切割、蒸压养护等工序制备而成，蒸压养护工艺制度为：升温2小时至温度185～190℃，同时大气压达到1.2～1.25MPa、恒温恒压6.5～8小时，再降温降压2小时到常温常压，最终得到产品的绝干抗压强度达到4.6～6.1MPa，干体积密度为542～586kg/m。本发明不仅为建材市场提供了轻质高强的加气混凝土产品，也为铅锌矿冶炼渣和钢渣的资源化利用找到一条新的途径，降低加气混凝土企业生产成本，提高企业经济效益和社保环保效益。
Method for preparing aerated concrete from lead-zinc ore smelting slag-steel slag
The invention discloses a method for preparing aerated concrete from lead-zinc ore smelting slag-steel slag. The raw materials comprise, by weight, 15-20% of cement, 10-18% of lime, 35-55% of lead-zinc ore smelting slag, 15-25% of steel slag and 2-6% of desulfurized gypsum, the water-material ratio is 0.50-0.60, and the aluminum powder paste accounts for 0.10-0.15% of the total weight of the dry material. The lead-zinc ore smelting slag-steel slag aerated concrete block is prepared by the processes of ultrafine grinding of raw materials, batching, rapid stirring, pouring, constant-temperaturestatic curing and gas forming, cutting, autoclaved curing and the like. The autoclaved curing process system is as follows: heating is carried out for 2h to reach a temperature of 185-190DEG C, meanwhile the atmospheric pressure reaches 1.2-1.25MPa, a constant temperature and a constant pressure are kept for 6.5-8h, then the temperature and the pressure are reduced for 2h to normal temperature andnormal pressure, the absolute dry compressive strength of the finally obtained product reaches 4.6-6.1MPa, and the dry volume density is 542-586kg/m<3>. The invention not only provides a lightweightand high-strength aerated concrete product for the building material market, but also finds a new way for resource utilization of lead-zinc ore smelting slag and steel slag, reduces the production cost of aerated concrete enterprises, and improves the economic benefits and social security and environmental protection benefits of enterprises.
本发明公开了一种铅锌矿冶炼渣—钢渣制备加气混凝土的方法。原料重量百分比：水泥15～20％，石灰10～18％，铅锌矿冶炼渣35～55％，钢渣15～25％，脱硫石膏2～6％，水料比为0.50～0.60，铝粉膏为干料总重量的0.10～0.15％。铅锌矿冶炼渣—钢渣加气混凝土砌块经原料超细粉磨、配料、快速搅拌、浇注、恒温静养发气、切割、蒸压养护等工序制备而成，蒸压养护工艺制度为：升温2小时至温度185～190℃，同时大气压达到1.2～1.25MPa、恒温恒压6.5～8小时，再降温降压2小时到常温常压，最终得到产品的绝干抗压强度达到4.6～6.1MPa，干体积密度为542～586kg/m。本发明不仅为建材市场提供了轻质高强的加气混凝土产品，也为铅锌矿冶炼渣和钢渣的资源化利用找到一条新的途径，降低加气混凝土企业生产成本，提高企业经济效益和社保环保效益。
Method for preparing aerated concrete from lead-zinc ore smelting slag-steel slag
一种铅锌矿冶炼渣—钢渣制备加气混凝土的方法
WEI JIAZHAN (author) / CHEN PING (author) / LIU RONGJIN (author) / DUAN PENGXUAN (author) / HUANG CHONGYI (author) / LONG ZUYE (author) / LIANG HAIQU (author) / JING DAIYAN (author) / ZHAO YANRONG (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
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