This study compares the environmental impacts of blast furnace slag-, fly ash-, and metakaolin-based alkali-activated concretes with Portland cement (PC) using life cycle assessment methodology. The variability in production processes mix constituents across Europe uncertainty associated transportation distances are evaluated for both types concrete. recent data on soluble sodium silicates was ...

belladona leaves as well as all other studied leaves contains two distinct phosphatase fractions belonging respectively to types ii and iiii the major parts of these enzymes is extraetible by water. it was not possible to extract the non soluble fraction which is solidly retained by the cellular constituents. phosphatase ii does not differ from other phosphatnses of the same type. whereas phosp...

Poly(methyl methacrylate) grafted imogolite clay nanotubes were fabricated via activators regenerated by electron transfer for atom transfer radical polymerization (ARGET ATRP) by designing a water-soluble amphiphilic ATRP initiator that can adsorb onto imogolite surface in an aqueous solution.