Due to the scarcity of rational models for predicting the strength of RC beam-column sandwich joints, a modified simplified softened strut-and-tie model suggests a more rational calculation method for the effective compressive strength and the height of the joint concrete based on the simplified softened strut-and-tie. The shear strength of existing tested 15 sandwich interior joints is calcula...

Clayey subgrade soils are considered to have a lower bearing capacity, which may develop early pavement failure due diverse axle loading. To avoid such issues, these must be treated prior the beginning of construction work. In recent past, soil stabilization with plastic waste has become popular reduce and improve behaviour. The current study aimed use polyethylene terephthalate (PET) bottles c...

PURPOSE Pre-surface treatments of coping materials have been recommended to enhance the bonding to the veneering ceramic. Little is known on the effect on shear bond strength, particularly with new coping material. The aim of this study was to investigate the shear bond strength of veneering ceramic to three coping materials: i) metal alloy (MA), ii) zirconia oxide (ZO), and iii) lithium disili...

background: the aim of this study was to compare the shear bond strength of four one-step self-etch adhesives with different ph values to enamel and dentin. materials and methods: in this in vitro study, 200 bovine permanent mandibular incisors were used. four one-step self-etch adhesives with different ph values were tested both on enamel and on dentin: adper™ easy bond self-etch adhesive (ph ...

Photoacoustic spectroscopy was used to predict the interlaminar shear strength of a carbon/epoxy composite. Samples were artificially aged by exposing the samples to elevated temperatures in an air environment. Short-beam shear tests were performed to determine mechanically the interlaminar shear strength of the samples. Photoacoustic spectra of the samples were also collected and compared to m...

the mechanical behaviour of rockfill materials and aggregates depends not only on particle size and compaction, but also on their strength and lithological properties. in this research two types of large triaxial and direct shear tests are performed on rockfill materials. this paper compares the stress-strain behaviour of sandstone and andesibasalt materials in triaxial compression tests (3006...

This paper presents the results of laboratory evaluation black cotton soil stabilized with Palm Oil Fuel Ash(POFA) and Xanthan Gum(XG), to determine its suitability as reliable construction material. POFA, a major byproduct palm oil industry is being dumped into open fields which can cause environmental problems. Using POFA an additive in stabilization be eco-friendly sustainable practice. XG g...

This study investigates the stabilizing effects of Halloysite nanotubes on geotechnical features gypseous soil as a subgrade. The that was utilized for this collected from Ayn al-Tamr in Karbala City, southwest Iraq, having an average gypsum 30% and designated (SP) by (USCS). As percentage dry unit weight soil, mixed with small amount nanomaterial (Halloysite nanotubes). A set physical chemical...

The loose sand is subject to large settlement when it exposed high stresses. This due the nature of drainage sand, which displays foundations and constructions a danger. densification sandy soils required provide sufficient bearing capacity for structures. Thus soil stabilization used avoid failure in facilities. Traditional methods stabilized such as fly ash, bituminous, cement often require a...