Kundos M. Modified high-sulfate-slag binders and products based on them

The aim of the research is a sulfate-slag binders (SSB) high-strength low-aluminous granulated blast slag clay characteristic of the metallurgical enterprises of Ukraine, and sulphate component - phosphogypsum dump and competitive manufacturing materials and products based on them. The research object is a thin sulfate slag binders, the processes of sulfate-modified slag binders based on low-aluminous slag granulated blast additives, structure modified by hardening of high sulfate slag binders, concrete, solutions on their basis and features of a complex set of their properties. Experimental studies performed using methods of physical and mechanical tests and of modern methods of physical-chemical analysis, including X-ray diffractometry, electron microscopy, ultrasonic method, determination of air permeability. For the optimization of the investigated binders and dry mixes used experimental methods of statistical modeling. Scientific novelty of the work is that theoretically substantiated and experimentally confirmed the possibility of obtaining high SSB based on low-aluminous and sulphate and alkaline activation optimal structure; determined the changes in physical and mechanical properties of the sulfate slag binders based low-aluminous Domain granulated slag, depending on the composition of ingredients and cooking methods that allow for artificial stone with the required properties; experimentally investigated the durability and deformability of hardened high SSHV modified stone and concrete and solutions based on it, and the preservation of steel reinforcement in concrete based on modified high sulfate slag binder. In the practical value of the results include the possibility of increasing strength set SSB based on low-aluminous granulated blast slag and phosphogypsum - to strength over M350, by optimizing the composition and the intensification of grinding binder; optimized methods for obtaining SSHV marks 300, 400, 500, 550 and 600 due to its maximum effect modification additives, obtained optimal compounding durable concrete, mortar, dry mixes based on the sulfate slag binders. The level of implementation of the results is sufficient. Results dissertations implemented at the enterprise for wall products in the village. Tuzhyliv Kalush district of Ivano-Frankivsk region and the company "Fantomash" in Sarni, Rivne region. Area (region) use - the Ukraine, which produces construction materials, and in the learning process for building specialties.