混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2013年
12期
73-75
,共3页
铸造废砂%废砂处理%抗压强度%流动性
鑄造廢砂%廢砂處理%抗壓彊度%流動性
주조폐사%폐사처리%항압강도%류동성
Waste foundry sand%Treatment of waste sand%Compressive strength%Fluidity
使用未处理和处理后的铸造废砂取代天然砂制备混凝土，并对混凝土的性能作了对比分析。结果表明，与基准混凝土相比，用未处理的废砂取代天然砂时，随着取代率的提高，混凝土的流动性变差，抗压强度也随之降低；处理后的废砂与未处理废砂对混凝土性能的影响趋势一致，抗压强度有所提高，当仅取代天然砂中的细砂时，对混凝土的抗压强度几乎没影响。
使用未處理和處理後的鑄造廢砂取代天然砂製備混凝土，併對混凝土的性能作瞭對比分析。結果錶明，與基準混凝土相比，用未處理的廢砂取代天然砂時，隨著取代率的提高，混凝土的流動性變差，抗壓彊度也隨之降低；處理後的廢砂與未處理廢砂對混凝土性能的影響趨勢一緻，抗壓彊度有所提高，噹僅取代天然砂中的細砂時，對混凝土的抗壓彊度幾乎沒影響。
사용미처리화처리후적주조폐사취대천연사제비혼응토，병대혼응토적성능작료대비분석。결과표명，여기준혼응토상비，용미처리적폐사취대천연사시，수착취대솔적제고，혼응토적류동성변차，항압강도야수지강저；처리후적폐사여미처리폐사대혼응토성능적영향추세일치，항압강도유소제고，당부취대천연사중적세사시，대혼응토적항압강도궤호몰영향。
The green concretes are prepared by using untreated and treated waste foundry sand to partially substitute the natural sands, and the performances of the two kinds of concretes were compared and analyzed. The test results show that comparing with the reference concrete, the liquidity and compressive strength of the concrete with untreated waste foundry sand decrease with the creasing the content of the waste foundry sand; the effect tendency of treated waste foundry sand on the performances of concrete are consistent with those of untreated waste foundry sand, and the performances have a certain improvement. When using all the treated waste foundry sand to replace the fine sand in natural sand, it’s found that treated waste foundry sand has hardly effect on the compressive strength of the concrete.
