%0 Journal Article %T Use of limestone of the Republic of Bashkortostan in production of cement %A Usmanova, L.Z. %A Usmanova, D.Z. %K Portland cement, composition of clinker, limestone additive, fineness of grinding, strength of cement %J Technique and technology of silicates %D 2016 %N 23 %P 3 %I Individual Entrepreneur Svetlana Vasilievna Samchenko