【摘要】：采用滌棉混紡(P/C)和滌綸(PE)廢棄織物增強水泥基透水混凝土磚,分析織物含量和織物尺寸等因素對復合透水磚(CPB)抗壓性能、透水性和保水性的影響。結果表明:隨著織物摻加體積分數的增加,CPB的抗壓強度、壓縮韌性指數和所消耗能量先增大后減小,透水系數和保水系數增加;隨著織物尺寸增大,CPB的抗壓強度、透水系數和保水系數逐漸減小,壓縮韌性指數增加,耗能變化幅度不大;在織物和纖維摻加量較小且摻加質量相同的條件下,與廢棄織物CPB相比,再生纖維CPB的抗壓強度較小,而壓縮韌性指數、耗能和透水系數較大;當織物摻加體積分數≤2%時,滌棉復合透水磚(PC-CPB)的抗壓強度優(yōu)于滌綸復合透水磚(P-CPB),透水系數、保水系數和P-CPB接近,當織物摻加體積分數2%時則相反,而PC-CPB的壓縮韌性指數和耗能始終優(yōu)于P-CPB;織物摻加體積分數為2%的3mm×3mm P/C織物所制備的CPB抗壓強度為28.20 MPa,耗能為1 097.55N·m,透水系數為0.267mm/s,保水系數為43.40g/cm2,與普通透水磚相比,分別提高了21.8%、55.8%、115.3%和33.3%。
[Abstract]:Polyester / cotton (P / C) and polyester (PE) waste fabrics were used to strengthen cement based permeable concrete brick. The effects of fabric content and fabric size on (CPB) compressive strength, water permeability and water retention of composite permeable brick were analyzed. The results show that the compressive strength, compression toughness index and energy consumption of CPB increase first and then decrease with the increase of the volume fraction of the fabric, and the water permeability and water retention coefficient increase. With the increase of fabric size, the compressive strength, water permeability and water retention coefficient of CPB decrease gradually, the compression toughness index increases, and the energy consumption is not changed. Compared with waste fabric CPB, the compressive strength of regenerated fiber CPB is smaller, and the compression toughness index, energy dissipation and water permeability coefficient are higher than that of waste fabric CPB. When the volume fraction of the fabric is 鈮，

本文編號：2428459