混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2014年
10期
54-57
,共4页
活性粉末混凝土%钢纤维%聚丙烯纤维%抗压强度%抗折强度
活性粉末混凝土%鋼纖維%聚丙烯纖維%抗壓彊度%抗摺彊度
활성분말혼응토%강섬유%취병희섬유%항압강도%항절강도
Reactive powder concrete%Steel fiber%Polypropylene fiber%Compressive strength%Flexural strength
通过对16组分别掺入钢纤维和聚丙烯纤维的活性粉末混凝土试件进行抗压、抗折强度试验,并且对每组试件采用了三种不同的养护方案。试验结果表明：热水养护对活性粉末混凝土的抗压和抗折强度有较大幅度的提升,当温度达75℃时,提升幅度10%~30%；相比单掺聚丙烯纤维单掺钢纤维对活性粉末混凝土试块的抗压、抗折强度提升幅度更大,钢纤维含量为4%时活性粉末混凝土的抗压和抗折强度分别提高21%和53%；钢纤维掺量为2%和聚丙烯纤维掺量为0.3%并且经过75℃高温养护的活性粉末混凝土试块其抗压、抗折力学性能达到最优,其抗压强度达到168.4MPa,抗折强度达到31.57MPa。
通過對16組分彆摻入鋼纖維和聚丙烯纖維的活性粉末混凝土試件進行抗壓、抗摺彊度試驗,併且對每組試件採用瞭三種不同的養護方案。試驗結果錶明：熱水養護對活性粉末混凝土的抗壓和抗摺彊度有較大幅度的提升,噹溫度達75℃時,提升幅度10%~30%；相比單摻聚丙烯纖維單摻鋼纖維對活性粉末混凝土試塊的抗壓、抗摺彊度提升幅度更大,鋼纖維含量為4%時活性粉末混凝土的抗壓和抗摺彊度分彆提高21%和53%；鋼纖維摻量為2%和聚丙烯纖維摻量為0.3%併且經過75℃高溫養護的活性粉末混凝土試塊其抗壓、抗摺力學性能達到最優,其抗壓彊度達到168.4MPa,抗摺彊度達到31.57MPa。
통과대16조분별참입강섬유화취병희섬유적활성분말혼응토시건진행항압、항절강도시험,병차대매조시건채용료삼충불동적양호방안。시험결과표명：열수양호대활성분말혼응토적항압화항절강도유교대폭도적제승,당온도체75℃시,제승폭도10%~30%；상비단참취병희섬유단참강섬유대활성분말혼응토시괴적항압、항절강도제승폭도경대,강섬유함량위4%시활성분말혼응토적항압화항절강도분별제고21%화53%；강섬유참량위2%화취병희섬유참량위0.3%병차경과75℃고온양호적활성분말혼응토시괴기항압、항절역학성능체도최우,기항압강도체도168.4MPa,항절강도체도31.57MPa。
Through the compressive strength test and flexural strength test of the 16 groups reactive powder concrete test specimens mixed with steel fiber and polypropylene fiber are carried out, and each test specimen was used three dif-ferent curing methods. The results show that the compressive strength and flexural strength of reactive powder concrete have a significant increase by using the hot water curing, when the temperature is 75℃, the increasing extent is 10% ~30%. Compared with mixed polypropylene fiber, increasing extents of compressive strength and flexural strength of the specimens mixed steel fiber are bigger, when steel fiber content is 4%, compressive strength and flexural strength of the specimens increase by 21% and 53% respectively; the compressive strength and flexural strength of the specimens com-bined admixture of 2% steel fiber and 0.3% polypropylene fiber are the best after 75℃ high-temperature curing, their compressive strengths are168.4MPa and flexural strengths are 31.57MPa.
