Pengaruh Penyumbatan Pori (Clogging) pada Perkerasan Aspal Porous Terhadap Permeabilitas dan Limpasan Permukaan

Talitha Melati, Eri Susanto Hariyadi, Harmein Rahman
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Abstract

Abstrak Penelitian ini bertujuan untuk menganalisis pengaruh penyumbatan pori pada aspal porous terhadap kemampuan drainase melalui parameter limpasan permukaan dan permeabilitas. Asbuton murni digunakan sebagai bahan pengikat dengan harapan dapat memperbaiki kualitas campuran. Penelitian disimulasikan pada kondisi sebelum dan sesudah terjadi penyumbatan pori dengan variasi load sedimen, gradasi campuran, dan curah hujan. Penentuan gradasi campuran melalui proses trial dengan ketentuan batas sesuai ASTM D7064/D7064M − 08 (2013). Pengujian tersebut menggunakan alat falling head dan rainfall simulator. Hasil pengujian menunjukkan bahwa load sedimen berpengaruh terhadap penurunan kapasitas infiltrasi campuran aspal porous. Kapasitas infiltrasi campuran aspal porous dengan VIM 20,67% dapat menurun hingga 22% ketika disimulasikan penyumbatan pori dengan load sedimen sebesar 780 gram/m2. Intensitas hujan 110 mm/jam hanya dapat mengembalikan kemampuan pengaliran air pada ketiga campuran aspal porous sebesar 11%. Tidak ada limpasan permukaan pada seluruh campuran baik dalam kondisi pori normal maupun tersumbat oleh sedimen. Di antara ketiga desain campuran aspal porous, campuran dengan VIM 23% memiliki ketahanan penyumbatan pori paling baik terhadap load sedimen yang disimulasikan. Untuk menghasilkan campuran dengan VIM tinggi, gradasi campuran aspal porous didesain dengan nilai koefisien keseragaman (Cu) yang rendah. Kata-kata Kunci: Aspal porous, asbuton, limpasan permukaan, permeabilitas, rainfall simulator. Abstract This research aims to analyze the effect of porous asphalt clogging on drainage capacity through surface runoff and permeability parameters. Buton rock asphalt pure extraction is used as a binder to increase the quality of the mixture. The study simulated the condition before and after the occurrence of porous asphalt clogging with variations in sediment load, gradation, and rainfall intensity. Determination of the gradation through trial process with limit condition according to ASTM D7064/D7064M − 08 (2013). The simulation used falling head and rainfall simulator tools. The test results show that the sediment load affected the decrease in infiltration capacity of porous asphalt. The infiltration capacity of porous asphalt with VIM of 20.67% can decrease up to 22% when pores were clogged by sediment of 780 gram/m2. Rain intensity of 110 mm/hour only restore the ability to drain water by 11%. There was no surface runoff on any of the mixtures under both normal and sediment clogged pore conditions. Among three porous asphalt mixture designs, mixture with highest VIM had the best pore clogging resistance. To produce mixture with high VIM, the porous asphalt gradation was designed with low uniformity coefficient (Cu). Keywords: Asbuton, porous asphalt, permeability, rainfall simulator, surface runoff.
渗漏对路面渗漏和渗漏的影响
本研究旨在分析孔隙沥青阻塞通过表面淤泥和渗透性参数对排水能力的影响。纯沥青被用作粘合剂,希望能提高混合物的质量。研究模拟了孔隙闭塞前和闭塞的情况,并有不同的沉淀物、混合色调和降水。测定混合渐变通过审判过程按照ASTM限制条款D7064 - D7064M−08(2013年)。测试使用了falling head工具和rainfall模拟器。测试结果显示,沉淀物含量降低了舷窗沥青混合的吸收能力。当用780克/m2的沉淀物来模拟毛孔堵塞时,其吸收能力可降至22%。雨的强度为每小时110毫米,只有11%的平柏油混合物才能恢复其灌溉能力。整个合金没有表面径流,无论是在正常的孔隙条件下还是被沉积物堵塞。在这三种合金沥青混合物设计中,一种带有VIM 23%的合金对模拟的沉淀物负载具有最大的毛孔阻塞性。为了生产一种带有高密度VIM的混合,porous沥青混合物的设计具有低质量的系数(Cu)。关键词:porous柏油路,asbuton,表面径流,渗透性,rainfall模拟器。这一研究旨在分析下水道对机动车交通的影响,通过表面运行和渗透性parameters。Buton rock asphalt pure asphalt是用来增加混合的质量的粘合剂。研究包括在被装物品、梯度和rainfall强度的可变情况之前和之后的情况。gradation之决心通过审判过程和限制条件弥足ASTM D7064 - D7064M−08(2013年)。模拟用的是弹跳头和rainfall模拟器工具。试验结果显示,部分内容影响了porous asphalt电路板的授权。以20.67%的利率接近22%的时候,pores被一种780克/m2的细分。110毫米/小时的降水只有11%的恢复能力。正常的混合和封闭的孔条件下没有浮出水面。Among three porous asphalt混合设计师,与highest VIM的最佳暗箱阻力混合。为了生产与高级VIM混合,porous asphalt grave设计的低海拔coefy (Cu)。Asbuton, porous asphalt, permeability, rainfall模拟器,surface runoff。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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