HEAVY CONCRETE BASED ON POLYDISPERSE BINDER WITH COMPLEX POLYMER MODIFIER WITH INCREASED PERFORMANCE INDICATORS

Abstract

The main task of obtaining concrete, in particular for irrigation and drainage construction, with increased performance by modifying their structure and properties with complex additives is becoming more and more relevant every year. Within the framework of these studies, issues related to the modification of the composition of heavy concrete with the use of a complex chemical additive consisting of the superplasticizer Melflux 5581 F and the water-soluble polymer additive Polydon-A were considered. The aim of the study is to develop a scientifically based technological solution that provides the production of heavy concrete based on a polydisperse binder with a complex polymer modifier (Melflux + Polydon-A) for agricultural construction. The object of study is heavy concrete based on a polydisperse binder with a complex polymeric modifier for agricultural construction. Research results: The resulting modified concrete is characterized by an increase in compressive and tensile strength in bending, a conditional stress intensity factor, water absorption, water resistance and frost resistance, which makes it possible to recommend it for the production of building products and structures operating in harsh operating conditions, in particular, for trays irrigation systems.