Pavement thickness is a very vital component during the design stage of road construction project. helps to determine costs project over certain period ascertain how cost pavement affect life cycle road. Road pavements are designed based on type subgrade material and expected traffic load help clients decision-makers make decisions In this study, expansive materials were improved using lime cem...

Abstract Poor subgrade soil conditions might cause insufficient pavement support and shorten the life of pavement. The addition chemical or cementation additives to soils can help perform better. Chemical be anything from waste manufactured components like lime coconut shell ash (CSA). These used improve qualities a soils. efficiency these is determined by type treated amount additive used. The...

This paper presents an extensive series of laboratory works and a prediction model on the design road pavement subgrade with Xanthan Gum (XG) biopolymer. The experimental were carried out using mixtures conventional aggregate for construction XG at ratios 0%, 1%, 2%, 5%, by dry weight. Unconfined compressive strength (UCS) California bearing ratio (CBR) tests conducted during end various curing...

This study investigates the effects of mucilage from Opuntia ficus-indica cladode (MOFIC), a bio-modifier, on Lime-stabilized Lateritic soil's durability and index features. Specifically, this research assessed alterations to Atterberg limits, compaction characteristics, California bearing ratio (CBR), values unconfined compressive strength (UCS) properties soil samples stabilised through labor...

A four-lobe pressure dam bearing which is produced by cutting two pressure dams on the upper two lobes and two relief-tracks on the lower two lobes of an ordinary four-lobe bearing is found to be more stable than a conventional four-lobe bearing. In this paper a four-lobe pressure dam bearing supporting rigid and flexible rotors is analytically investigated to determine its performance when L/D...

To solve the problem of critical buckling in the structural analysis and design of the new long-span hollow core roof architecture proposed in this paper (referred to as a "honeycomb panel structural system" (HSSS)), lateral compression tests and finite element analyses were employed in this study to examine the lateral compressive buckling performance of this new type of honeycomb panel with d...

We determined source spectral functions, Q and site effects using regional records of body waves from the October 19, 2013 (Mw = 6.6) earthquake and eight aftershocks located 90 km east of Loreto, Baja California Sur, Mexico. We also analyzed records from a foreshock with magnitude 3.3 that occurred 47 days before the mainshock. The epicenters of this sequence are located in the south-central r...

BACKGROUND When an implant is inserted in the bone the healing process starts to osseointegrate the implant by creating new bone that interlocks with the implant. Biomechanical interlocking capacity is commonly evaluated in in vivo experiments. It would be beneficial to find a numerical method to evaluate the interlocking capacity of different surface structures with bone. In the present study,...

Biological processes may provide great and previously unexplored opportunities for cost-effective, in situ improvement of the engineering properties of soil. A laboratory study was conducted to evaluate the changes in geomechanical properties of sand attributable to the formation of calcium precipitates induced through ureolysis catalyzed by Sporosarcina pasteurii (S. pasteurii). Specifically, ...