The article presents studies’ results of cementless lightweight concretes based on porous granular aggregate. Lightweight concrete components are specially synthesized from mixtures containing liquid sodium glass and thermal energy waste with various fineness. Thermal hardening a matrix technogenic fillers at temperature 350ºС provided heat-insulating 480 kg/m 3 density compressive strength 4.7...

Abstract The development of glufosinate-resistant soybean cultivars has created opportunities for use glufosinate applied postemergence weed control. Four field experiments were conducted in 2021 and 2022 to ascertain the effect rate addition ammonium sulfate on annual control glyphosate/glufosinate/2,4-D–resistant soybean. An increased 500 from 300 g ai ha −1 improved common ragweed, lambsquar...

When incubated with acid, alkaline, and neutral soils, a variety of synthetic sulfate esters representing the various classes of these compounds was hydrolyzed by enzymes, probably of microbial origin. The appearance of sulfate in the soil water occurred immediately after introduction into the soils with some esters, whereas with others it occurred only after lag periods. Heat treatment destroy...

this experiment was carried out on lily cut flowers in greenhouse conditions and at the agricultural faculty of guilan university. the statistical factorial experiment was performed in a completely randomized design of three replications. the main factors studied were cultivars navona (asiatic) and fangio (la) along with four levels of calcium sulfate (0, 2.5, 5 and 10 mm) in combination with t...

Abstract—Air-cooled Blast Furnace Slag Aggregate (BFSA) is usually referred to as a material providing for unique properties of concrete. On the other hand, negative influences are also presented in many aspects. The freeze-thaw resistance of concrete is dependent on many factors, including regional specifics and when a concrete mix is specified it is still difficult to tell its exact freeze-th...

Abstract Partly replacing Portland cement (PC) with lower carbon footprint cementitious materials such as ground granulated blast furnace slag (slag) is considered a practical method for reducing CO 2 emissions in the concrete industry. To mitigate slow reactivity of system and enhance early-age strength, addition chemical activator solution. However, effect on creep behaviour slag-blended conc...

The reliability of concrete structures is closely related to the durability materials stable under external environmental conditions. present study aimed at analysing effect a prospective hardening additive containing calcium alumoferrites and sulfate (AFCS) as substitute (5–15%) for Portland cement. hardened cement pastes were characterized by water absorption, shrinkage, strength corrosion re...