本文選題：瀝青路面 + 棉秸稈纖維　； 參考：《應(yīng)用化工》2017年01期

【摘要】：采用棉秸稈纖維制備不同纖維摻量的瀝青膠漿,以錐入度試驗(yàn)和動(dòng)態(tài)剪切流變試驗(yàn)對其路用性能進(jìn)行評(píng)價(jià),并與木質(zhì)素纖維瀝青膠漿進(jìn)行對比。結(jié)果表明,纖維的加入可以明顯降低瀝青膠漿的錐入度和溫度敏感性,提高瀝青膠漿的抗剪切強(qiáng)度、復(fù)數(shù)剪切模量及車轍因子。與木質(zhì)素纖維相比,在15~50℃、纖維摻量1%~4%的情況下,棉秸稈纖維瀝青膠漿錐入度平均減小7.0%,抗剪強(qiáng)度平均高出17.1%。在纖維用量同為2%的情況下,棉秸稈纖維膠漿的復(fù)數(shù)剪切模量高出32.2%,車轍因子高出31.9%。隨著纖維摻量增加,纖維瀝青膠漿的錐入度降低,抗剪強(qiáng)度增大,其中纖維摻量1%~3%之間變化明顯。纖維在瀝青中的最佳摻量為2%~3%。隨溫度升高,纖維瀝青膠漿的錐入度增大,抗剪強(qiáng)度降低,其中15~25℃抗剪強(qiáng)度降低幅度較大。纖維的穩(wěn)定增韌作用主要體現(xiàn)在高溫區(qū)。
[Abstract]:Asphalt mortar with different fiber content was prepared from cotton straw fiber. The road performance was evaluated by cone penetration test and dynamic shear rheological test, and compared with that of lignin fiber asphalt mortar.The results show that the addition of fiber can obviously reduce the cone penetration and temperature sensitivity of asphalt mortar, and improve the shear strength, complex shear modulus and rutting factor of asphalt mortar.Compared with lignin fiber, under the condition of 1550 鈩，

本文編號(hào)：1751387