云南水力发电
雲南水力髮電
운남수력발전
YUNNAN WATER POWER
2015年
4期
13-17
,共5页
玄武岩%人工砂%裹粉%碾压混凝土
玄武巖%人工砂%裹粉%碾壓混凝土
현무암%인공사%과분%년압혼응토
basalt%crushed sand%coated powder%RCC
在官地水电站工程使用玄武岩轧制的人工砂，对玄武岩人工砂表面裹粉的特性及其对碾压混凝土性能影响的试验研究表明，其表面裹粉对碾压混凝土的抗压强度、极限拉伸值、抗剪断强度等指标有较大影响，通过优化人工砂生产工艺，降低人工砂中“有害微石粉”含量，有效提高碾压混凝土的各项性能指标，各项性能指标均达到了设计和规程规范的要求。
在官地水電站工程使用玄武巖軋製的人工砂，對玄武巖人工砂錶麵裹粉的特性及其對碾壓混凝土性能影響的試驗研究錶明，其錶麵裹粉對碾壓混凝土的抗壓彊度、極限拉伸值、抗剪斷彊度等指標有較大影響，通過優化人工砂生產工藝，降低人工砂中“有害微石粉”含量，有效提高碾壓混凝土的各項性能指標，各項性能指標均達到瞭設計和規程規範的要求。
재관지수전참공정사용현무암알제적인공사，대현무암인공사표면과분적특성급기대년압혼응토성능영향적시험연구표명，기표면과분대년압혼응토적항압강도、겁한랍신치、항전단강도등지표유교대영향，통과우화인공사생산공예，강저인공사중“유해미석분”함량，유효제고년압혼응토적각항성능지표，각항성능지표균체도료설계화규정규범적요구。
The crushed basalt sand was used for construction of Guandi hydropower project. The experimental study of the surface powder coat characteristics of the crushed basalt sand and its impact on the roller compacted concrete performance shows that its surface coat has great impacts on compressive strength, ultimate tensile value and shear strength of the roller compacted concrete. All of the performance indicators of the roller compacted concrete was effectively improved by optimizing crushed sand production processing technology and reducing the content of harmful microparticle sand powder, thus satisfying the requirements of both design and specifi cations.
