| Penulis/Author |
YUDHI ARNANDHA (1) ; Prof. Ir. Iman Satyarno, M.E., Ph.D. (2); Ir. Ali Awaludin, S.T., M.Eng., Ph.D., IPU., ACPE. (3); Dr. Ir. Inggar Septhia Irawati, S.T., M.T., IPM. (4); MUHAMMAD IHSAN (5); FELYX BIONDY W (6); WILLIAM (7); MAHDINUR (8); ARFIATI FARDHANI (9) |
| Abstrak/Abstract |
Wood-plastic composite (WPC) is a relatively new material that consists of sawdust and plastic polymer using the extrusion process. Due to its attributes such as low water content, low maintenance, UV durability and being fungi and termite resistant. Nowadays, WPC has already been produced in Indonesia using sawdust from local wood such as Albizia (Paraserianthes falcataria) and
Teak (Tectona grandis).
Moreover preliminary studies about the physical and mechanical WPC board
from Albizia sawdust and HDPE plastic have been carried out. Based on these studies, WPC has a high shear strength around 25–30 MPa higher than its original wood shear strength. This paper was a part of the research in evaluating WPC as potential sheathing in a shear wall system. Since still little is
known about connection behavior in WPC using Indonesian local wood, this study evaluated the connection for both of these two types of wood-plastic composite.
WPC board from Albizia sawdust will be projected as shear wall sheathing and WPC stud from Teak sawdust projected to be shear wall frame. For this study, the embedding strength for both WPC was determined according to ASTM D
5764 standard, using two types of bolts (stainless bolt and standard bolt) with several diameters as variation (6 mm, 8 mm, 10 and 12 mm). Hence, dowel-bearing test under fastened condition conducted accordance to ASTM D5652, hereby the yield strength then compared with the prediction yield strength from European Yield Model (EYM). According to both single and double shear
connection, it can be concluded that yield strength from the EYM method tended to under-predict the 5% diameter offset yield than the actual yield strength from the test.
The yield strength itself increase with the increase of bolt diameter. For single shear connection, the highest yield strength was 12 mm standard bolt around 9732 N, slightly higher than stainless bolt around 9393 N. Whereby for double
shear connection, the highest yield strength was 12 mm standard bolt around 12009 N, slightly higher than stainless bolt around 12009 N. Using statistical approach ANOVA, the different type of bolt between stainless bolt and standard bolt gave an insignificant result. Both type of bolt can be used as
structural connection, moreover it was recommended using a stainless bolt for outdoor purpose to reduce corrosion. |
