Concrete is in great demand due to global infrastructure expansion. Cement a critical component the production of concrete because it binds ingredients together. But primary issue arises environment release toxic gases such as CO3 and sulphur into atmosphere. To overcome this, some other cementitious materials, namely admixtures, were utilized partial replacements for cement. In this study, was...

grain discoloration caused by fungi agents, in crop season that the mature grain stage coincides with rain, it causes many damages. in this research effect of paddy discoloration of three varieties (hashemi, gohar and khazar) and disease index in two levels (high and low disease index levels) on grain apparent quality, milling properties and grain bending strength was investigated in a factoria...

objectives: micromechanical retention of resin cements to alloys is an important factor affecting the longevity of metal base restorations. this study aimed to compare the bond strength and etching pattern of a newly introduced experimental etchant gel namely nano met etch with those of conventional surface treatment techniques for nickel-chrome (ni-cr) and high noble alloys.  materials and met...