The study involves the use of periwinkle shell particles as reinforcement in production grindstone to meliorate its physical and mechanical properties. assessment properties reinforced concrete showed that yielded several promising results. compressive strength was higher for samples with lower water/cement ratio (7%) than those (10%). introduction contains shells fine aggregates resulted loss ...

Abstract The paper presents research into the changes of properties in cement-bonded particleboards caused by moisture saturation over course 504 h. Three particleboard variants were tested, all at age 18 months. first is a standard production-line board manufactured CIDEM Hranice, a.s. (identified as CP-R). other two modified by-products manufacturing process—dust (CP-D) and particulate mixtur...

The use of sheeting materials within the construction industry is becoming increasingly common as building and way they are used evolves. Recently, magnesium-based boards have received more attention alternatives for traditional materials. This due to some their enhanced properties, particularly fire resistance lower embodied carbon. However, lack standardised documentation has caused concern r...

partial replacement of formaldehyde with furfural in the urea-formaldehyde resin on the formaldehydeemission, physical and mechanical properties of particleboard was investigated. the modulus ofrupture (mor), modulus of elasticity (moe), internal bond (ib), water absorption (wa), thicknessswelling (ts) and formaldehyde emission (fe) of poplar particleboards made with the modifiedresins were mea...

Materials such as river sand, used in construction, have a high demand, and thus generate great environmental impacts while being extracted, erosion of the rivers banks your siltation. With increasing restriction sand extraction which can reduction product's offer civil construction sector, it is necessary to develop waste recycling technologies for production sands with less impact. One altern...

the acrylated epoxidized soy oil (aeso) was synthesized from epoxidized soy oil and its properties were investigated.  wheat straw particle boards were produced by the synthesized resin with 8% and 13% contents based on straws weight at three pressing times: 8,10 and 12 min. boards’ modulus of rapture, modulus of elasticity, internal bonding, minimum degree of thickness change and water absorpt...

In this study, the effect of wollastonite on mechanical, physical, and morphological properties composites made sesame stem (Sesamum indicum L.) gypsum was investigated. The mixing ratio as a lignocellulosic material with at three levels (10:90, 20:80, 30:70) (0%, 5%, 10%, based dry weight cement) were considered variables. Fire resistance (weight loss) tested according to ISO 11925-3 DIN EN 63...