摘要
植生混凝土护坡由于强度高、生态环境修复效果好等优点,正逐渐取代传统护坡。用秸秆纤维制备植生混凝土,可提高其贮存水分和养分的能力,还能为植物生长提供养分,改善混凝土与植物的相容性。试验以秸秆纤维掺量和长度为变量,研究秸秆纤维对磷石膏植生混凝土抗压强度、实际孔隙率、保水性、植生性能等方面的影响。结果表明:秸秆纤维对磷石膏植生混凝土的抗压强度具有削弱作用;磷石膏植生混凝土的有效孔隙率随秸秆纤维掺量和长度的增大而减小;秸秆纤维的掺入大大的改善了磷石膏植生混凝土的保水性能,有效地提高了其贮存水分和养分的能力;秸秆纤维的掺量不应大于0.1%,纤维长度以10 mm为宜。
Planting concrete slope protection is gradually appearing in the public′s view due to its high strength and good ecological environment restoration effect.Using straw fibers to prepare planting concrete can improve its ability to store water and nutrients,provide nutrients for plant growth,and improve the compatibility between concrete and plants.The experiment takes the content and length of straw fibers as variables to study the effects of straw fibers on the compressive strength,actual porosity,water retention,and vegetation performance of phosphogypsum planting concrete.The results show that straw fibers have a weakening effect on the compressive strength of phosphogypsum planting concrete;the effective porosity of phosphogypsum planting concrete decreases with the increase of straw fiber content and length;the addition of straw fibers greatly improves the water retention performance of phosphogypsum planting concrete,effectively enhancing its ability to store water and nutrients;the content of straw fiber should not exceed 0.1%,and the fiber length should be 10 mm.
作者
杨进
曾辉
魏鹏程
喻峰
杨澄
张风臣
储洪强
蒋林华
YANG Jin;ZENG Hui;WEI Pengcheng;YU Feng;YANG Cheng;ZHANG Fengchen;CHU Hongqiang;JIANG Linhua(China Yangtze Power Co.,Ltd.,Yichang 443002,China;College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China;College of Materials Science and Engineering,Hohai University,Changzhou 526000,China)
出处
《混凝土》
北大核心
2025年第10期188-192,共5页
Concrete
基金
中国长江电力股份有限公司资助(2222020006)。
关键词
植生混凝土
磷石膏
秸秆纤维
抗压强度
孔隙率
保水率
planting concrete
phosphogypsum
straw fiber
compressive strength
porosity
water retention rate
