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Application of polymer, silica-fume and crushed rubber in the production of Pervious concrete
Diyuan Li,Ali Toghroli,Mahdi Shariati,Fathollah Sajedi,Dieu Tien Bui,Peiman Kianmehr,Edy Tonnizam Mohamad,Majid Khorami 국제구조공학회 2019 Smart Structures and Systems, An International Jou Vol.23 No.2
chieving a pervious concrete (PC) with appropriate physical and mechanical properties used in pavement have been strongly investigated through the use of different materials specifically from the global waste materials of the populated areas. Discarded tires and the rubber tire particles have been currently manufactured as the recycled waste materials. In the current study, the combination of polymer, silica fume and rubber aggregates from rubber tire particles have been used to obtain an optimized PC resulting that the PC with silica fume, polymer and rubber aggregate replacement to mineral aggregate has greater compressive and flexural strength. The related flexural and compressive strength of the produced PC has been increased 31% and 18% compared to the mineral PC concrete, also, the impact resistance has been progressed 8% compared to the mineral aggregate PC and the permeability with Open Graded Fraction Course standard (OGFC). While the manufactured PC has significantly reduced the elasticity modulus of usual pervious concrete, the impact resistance has been remarkably improved.
Behavior of steel storage pallet racking connection - A review
Chulin Chen,Lei Shi,Mahdi Shariati,Ali Toghroli,Edy Tonnizam Mohamad,Dieu Tien Bui,Majid Khorami 국제구조공학회 2019 Steel and Composite Structures, An International J Vol.30 No.5
Steel pallet racking industry has globally used from the industrial revolution and has deeply evolved from hot-rolled profile into cold-formed profile to raise the optimization in engineering field. Nowadays, some studies regarding cold-formed steel profile have been performed, but fewer studies in terms of cold-formed pallet racking specifically in connection due to the semi-rigid behavior by lug-hooked into the upright have been conducted. The objective of this study is to review the related literature on steel storage racking connection behavior.
Qiang Xie,Hamid Sinaei,Mahdi Shariati,Majid Khorami,Edy Tonnizam Mohamad,Dieu Tien Bui 국제구조공학회 2019 Steel and Composite Structures, An International J Vol.30 No.5
The aim of this research is reinforcing of concrete with variety of fiber reinforced polymer (FRP) configurations and investigates the load capacity and ductility of these connections using an experimental investigation. Six scaled-down RC exterior joints were tested under moderately monotonic loads. The results show that, the shape of the FRP had a different effect on the joint capacity and the connection ductility coefficient. The greatest effect on increasing the ductility factor was seen in the sample where two reinforcement plates were used on both sides of the beam web (RCS5 sample). For the sample with the presence of FRP plates at the top and bottom of the beam (RCS3 sample), the ductility factor was reduced even the load capacity of this sample increased. Except for the RCS3 sample, the rest of the samples exhibited an increase in the ductility factor due to the FRP reinforcement.