The road is one of the most fundamental forms of social infrastructure and plays a critical role in boosting the local economy. However, the route has been used in many different loading types, affecting their performance. The increase in traffic in commercial vehicles is the main factor causing road damage. This problem involves us thinking about improving the pavement characteristic and quality by using polymer modification materials that satis
Most seismic design methods generally use an equivalent-static lateral forces known as an elastic method to generate the lateral design force from the earthquake ground motions. Although this method is permissible under design ground acceleration, the accurate inelastic response is not well explained and still remains in extensive studies. In this regard, cumulative energy dissipation is an integral part of the design process in order to ensure t
This paper presents a comparative study on the direct seismic design methods for buckling-restrained knee-braced frames (BRKBFs) with single plate shear connections (SPSCs). Three significant methods, namely direct displacement-based design (DDBD), performance based-plastic design (PBPD), and yield point spectra (YPS) are investigated for the seismic application of the BRKBFs. The main objectives of this study are, (1) to determine the design bas
The Koh Norea cable-stayed bridge, which connects the islands of Koh Pich and Koh Norea, is considered as one of Cambodia's most significant projects. The main bridge is an extrados cable-stayed bridge with two tall pylons. The pylon is supported by eighteen 2.0m diameter, 62.60m long drilled piles that are rock socketed into coal measure sandstone. Large diameter super-long bored piles typically have a high bearing capacity. The self-balanced me
The aim of this study is to investigate the organic petrology of shale in Phnom Mreach, Angkor Chum District, Siem Reap province, onshore Cambodia. Thin-section is carried out to analyze mineral compositions, sedimentary texture, and shale classification. Polish-section is used to identify the types of organic matter under reflected light. Scanning electron microscope (SEM) is analyzed for further detailed study on types and morphology of organic
This paper presents flexural strength, flexural modulus as well as the weight percentage of porosity in specimen by mixing two kind of epoxy resins for Sikadur® 31 CF Normal and Sikadur® 52 TH. The ratio of mixed Sikadur 31-52 following by 100%-0%, 66%-33%, 50%-50%, 33%-66% and 0%-100%, respectively with 3, 6, and 9 days curing time. The aim of this project helps to choose the correct proportions for renovating archeological structures, and espec
Fiber Reinforced Polymer (FRP) external bonding system is a popular technique that is used to strengthen and repair existing structural elements due to its high strength to weight ratio, fatigue resistance, non-corrosiveness and ease of handling and application at the site. In this research, the focus is on the behavior of FRP external bonding system use to strengthen Reinforced Concrete (RC) beam and column when subjected to be exposed to out-do
Fiber Reinforced Polymer (FRP) is a popular technique that is used to strengthen and repair existing structural elements due to its high strength to weight ratio, fatigue resistance, non-corrosiveness and ease of handling and application at the site. The objective of this research is to study the effect of reinforced concrete (RC) beam and column externally strengthened with glass fiber reinforced polymer (GFRP) sheets after exposing to cyclic we
Glass, a fragile material that gains popularity in building construction, has been developed to sustain with high loads. This structural glass would not work effectively if the connection has not been able to transfer the loads properly. The study aims to optimize bolted connection of structural glass. We focus on the geometry optimization of the bolt to deal with heavy external loading that requires a strong connection. Numerical parametric stud
River bank stability is very sensitive to the variation of the water level (WL) of the river. This is the case along the Lower Mekong River which WL change between dry and wet seasons is about 10m. This paper presents a study of river bank stability subjected to variations of the water level. Dupuit assumption is supposed to find the variation of WL in the soil using a numerical solution by an explicit finite difference method. The mass sliding S
