混凝土
混凝土
혼응토
CONCRETE
2014年
1期
143-146
,共4页
力学性能%正交试验%粉煤灰掺量%纤维掺量%水胶比%渠道衬砌混凝土
力學性能%正交試驗%粉煤灰摻量%纖維摻量%水膠比%渠道襯砌混凝土
역학성능%정교시험%분매회참량%섬유참량%수효비%거도츤체혼응토
mechanical property%orthogonal test%content of fly ash%fibers content%water-binder ratio%concrete of canal liner
研究了水胶比、粉煤灰掺量、聚丙烯纤维掺量对混凝土抗压强度、抗折强度和劈裂抗拉强度的影响。结果发现，即使粉煤灰掺入量达到300 g/kg，混凝土的强度等级也在 C30以上；纤维掺量对混凝土抗折强度和劈裂抗拉强度的影响规律基本一致，纤维掺量越大混凝土抗折、抗拉强度越大。这表明，在渠道衬砌混凝土中掺入适当比例的粉煤灰和聚丙烯纤维是可行的，能满足渠道衬砌对混凝土的强度要求。
研究瞭水膠比、粉煤灰摻量、聚丙烯纖維摻量對混凝土抗壓彊度、抗摺彊度和劈裂抗拉彊度的影響。結果髮現，即使粉煤灰摻入量達到300 g/kg，混凝土的彊度等級也在 C30以上；纖維摻量對混凝土抗摺彊度和劈裂抗拉彊度的影響規律基本一緻，纖維摻量越大混凝土抗摺、抗拉彊度越大。這錶明，在渠道襯砌混凝土中摻入適噹比例的粉煤灰和聚丙烯纖維是可行的，能滿足渠道襯砌對混凝土的彊度要求。
연구료수효비、분매회참량、취병희섬유참량대혼응토항압강도、항절강도화벽렬항랍강도적영향。결과발현，즉사분매회참입량체도300 g/kg，혼응토적강도등급야재 C30이상；섬유참량대혼응토항절강도화벽렬항랍강도적영향규률기본일치，섬유참량월대혼응토항절、항랍강도월대。저표명，재거도츤체혼응토중참입괄당비례적분매회화취병희섬유시가행적，능만족거도츤체대혼응토적강도요구。
The effects of water-cement ratio,the amount of fly-ash and fibers on compressive strength,flexural strength and split tensile strength of the concrete were studied.The results suggested that an addition of 300 g/kg fly-ash met the requirement of the compressive strength used in canal liner.Fiber content has large impact on flexural and splitting tensile strength next only to the water-binder ratio,and flexural and splitting tensile strength of concrete increase with the increase of the fiber content.This showed that the concrete produced with fly-ash and fibers could achieve ideal strength and could be used as canal liner through a reasonable selection of the fly-ash and polypropylene fibers contents.
