Improving the strength and resistance of cement composites to the external environment by utilizing complex additives

The article discusses the influence of complex additives on strength and resistance cement composites to environmental impacts. One - PFM-NLK (concrete modifier)- a factory fabricated mixture superplasticizer with addition air-retaining water proofing substances. Another one is additive containing superplasticizer, sodium tetraborate boric acid.Common denominator content superplasticizer. It allows reducing W / C ratio thereby increasing density composite, and, accordingly, its frost corrosion resistance. water-proofing substances additionally work toward formation material structure increased components other additive, acid tetraborate, form borate buffer system, which leads softening “chemical impact” thus further increases research findings revealed effectiveness substantiated regularity that if each factor separatelyfacilitative forproperty improvement, then, when they are combined, effect multiplied. PFM-NLKcomponents, contribute obtaining high An hyper-plasticizer, an increase in