Every year, millions of scrap tires are either discarded in huge piles across the landscape or dumped in landfills in large volumes all over the world. These tire piles cause environmental pollution while posing fire and health hazards. Being volumetr . . .

This paper presents the results of a study, whose aim was to determine the undrained shear strength at different over-consolidation ratios, which is a very important parameter to evaluate the stability of natural and man-made slopes in soft clay. The . . .

Global warming is a big concern these days all over the world including in the USA. It has said to trigger landslides all over the world every year due to the global warming. Landslides can damage the structures and block roads and rivers that require . . .

Based on previous studies, ground reinforcement methods such as stone columns, jet grouting, dynamic compaction, soil cement mixing, etc. are commonly used against potential liquefaction, settlement and to improve the bearing capacity of soil. However . . .

Infiltration is an important aspect to the hydrologic cycle as it allows for groundwater recharge. In California especially, groundwater is used for agriculture, industrial usage, and as drinking water. This Thesis presents an analytical model for tim . . .

Landslides, which have been existing around the world, are considered as environmental hazards. The number of landslide hazard is increasing every year. Although there are different causes of landslides, two major causes are rainfall and earthquake. R . . .

Large amounts of waste materials such as waste tires, rubbers, etc. are discarded into our surrounding environment. Thus, they are a major cause of contamination and pollution, which, as a result, could eventually lead to many problems including healt . . .

Soil is unlike other construction materials such as steel and concrete for which humans can control their properties. Therefore, it is important to investigate and test soil in order to predict its response to the construction loading. The coefficient . . .

The aim of this thesis is to provide a tool for contractors to select optimal equipment for projects, which will increase cost efficiency and reduce environmental impacts. The target geographic area for this research is the state of California, and th . . .

This study focuses on the analysis of rainwater runoff from an extensive green roof system. Over time, space that was formally available for rainwater to properly infiltrate to the ground is being taken up by impervious built surfaces. Green roof tech . . .

Performance Based Design (PBD) using nonlinear analysis techniques is a well– established method to evaluate the seismic performance of RC coupled wall structural systems and their associated components like coupling beams. In principle, it is crucial . . .

Lightweight concrete has been used in construction because of its properties, such as thermal, and fire resistances although it is more expensive and less available than normal weight concrete. One way to save time, cost, and to provide an alternative . . .

Improving the engineering properties of soil through soil modification has been implemented in practice for a number of years. However, construction over soft soil sites has remained a major challenge for projects all over the world because the ground . . .

Reinforced concrete (RC) walls are the most commonly used structural elements in buildings for resisting lateral forces induced by earthquakes. Therefore, reliable and robust analytical models that can predict their behavior under earthquake actions a . . .

Reinforced concrete (RC) structural walls are the most commonly used structural elements in buildings to resist earthquake loading. Concrete crushing in wall boundaries followed by buckling of longitudinal reinforcement is one of the most common failu . . .

According to a research conducted by Durham University, UK, landslides kill approximately ten times more people around the world than was formerly believed. Landslides are recurrently perceived in coastal areas where the water has high salinity. It is . . .

Liquefaction and cyclic mobility are two major modes of ground failure that occur due to earthquake loads. Cyclic mobility is initiated due to a reduction in shear strength of the soil. to evaluate the likelihood of occurrence of such failures, it is . . .

One of the many problems that engineers face is protecting structures from the disastrous effects of earthquakes, especially at soft soil sites. Soft soils are known to amplify the shaking during an earthquake resulting in higher accelerations at the . . .

In collaboration with the Orange County Water District (OCWD) Research and Development Department, water quality of advanced treated recycled water was studied before and after transit from its origin at an Advanced Water Purification Facility (AWPF) . . .

Various advances in all the areas of concrete technology have been made which include mixture proportioning, partial replacement of cement, durability requirements, materials, testing, structural designing, and recycling. Nowadays, transportation stru . . .

Over the last twenty-five years many infrastructure projects have been successfully pursued through the Public-Private Partnership (PPP) approach across the United States (US). While the PPP project delivery model remains the same in principle, the PP . . .

Bridges designed to resist earthquake ground-motions are expected to control the vibrations acting through them. These vibrations are to be dissipated during major seismic excitations. This research is focused on the design of a self-centering frictio . . .

Increased military and industrial activities involving the use of nitroaromatic explosives has led to a renewed focus on their environmental impact on soil, groundwater and surface water. Remediation of wastewater containing 2,4 DNT is critical to pre . . .

Neonicotinoid insecticides such as Imidacloprid (IMD), Thiamethoxam (THM), and Dinotefuran (DNT) are extensively used in agricultural operations. their occurrence in the environment can have significant adverse ecological consequences to non-target sp . . .

The emergence of different pharmaceuticals and personal care products (PPCPs) in the environment is a concern due to their potential adverse effect on human health and the environment. Among various sources, wastewater discharged from treatment plants . . .

Damping is defined as the behavior of the building to absorb the input energy. This damping behavior of the building can be improved by adding dampers. The primary goal of this experiment was to assess the impact of installing a liquid-filled tank . . .

The Mw 7.8 Gorkha earthquake struck central Nepal on April 25, 2015 and brought about a huge loss of life and property. The quake was also responsible for the generation of a large number of landslides. They blocked highways, devastated villages, and . . .

In this research, a study was conducted on the feasibility of replacement of concrete pavements with precast concrete pavements which will result in faster construction, thinner slabs and more durable life of the pavement. It was observed that precast . . .

Undrained shear strength is important in the evaluation of the stability of both natural and man-made slopes. Some researchers have proposed methods such as SHANSEP to evaluate the undrained shear strength of fine grained soils. However, the impact of . . .

An analysis of green roof water quality was done to answer this question: does the use of green roofs reduce or contribute to storm water pollution? Green Roofs can increase the overall water retention of an urban area and lower the volume of expected . . .