@article{Yulvi Zaika_Ludfi Djakfar_2021, title={GRADATION BAND OF SOME TYPES MATERIAL FOR RESERVOIR BASE OF POROUS PAVEMENT}, volume={11}, url={https://geomatejournal.com/geomate/article/view/2745}, abstractNote={<p>Recent year, reducing of open area and the extreme rainfall are reason for the flood in some city in <br>Indonesia. The drainage and infiltrated well were constructed in some parts of the city could not solve the <br>problem yet. The porous pavement can be applied to reduce run off, rate and pollutants. Reservoir base or sub <br>base is an important layer as part of structure and also temporary store rainfall water before infiltrate to the <br>subgrade. This study assessed characteristic and gradation some types of materials as stone crush, limestone and <br>steel slag for porous pavement and evaluate this performance based on California Bearing Ratio (CBR) and <br>porosity. Naturally these characteristics are contrary, in which for high porosity materials will have low bearing <br>capacity. There are 7 gradations consist of 4 gradations in coarse aggregate and 3 gradations based on Bina <br>Marga (Indonesian Highway Agency). The result showed that CBR of stone crush is high in uniform course <br>material gradation than limestone and steel slag. In the term of porosity, the result completely the same for all <br>materials in which the uniform gradation give the high porosity. It makes sign the influence of hardness and <br>gradation of material will give contribution for bearing capacity and only gradation influence to porosity. The <br>material are suitable for reservoir layer of porous pavement for light traffic load. Gradation band is lied between <br>Bina Marga and NAPA and AASHTO specification.</p>}, number={25}, journal={GEOMATE Journal}, author={Yulvi Zaika and Ludfi Djakfar}, year={2021}, month={Nov.}, pages={2486–2492} }