Determination of appropriate mix ratios for concrete,
1:2:4 mix ratio, Portland-limestone cement grade 42.5 is required. Keywords Cement grades, Concrete grade, Compressive strength, Portland-limestone cement Introduction In the Nigerian urban areas, concrete is widely used for the construction of building structural elements . With the exception of buildings owned by the Nigerian and foreignEffect of limestone aggregate type and water–cement ratio,,This article investigates the effects of water–cement (w–c) ratio and coarse limestone aggregate type on compressive strength of concrete.Portland-Limestone Cement - National Precast Concrete,,During hydration of low water-to-cementitious material ratio concrete mixes, a portion of the cement often remains unhydrated. It just sits in the concrete as filler.,“The Durability of Concrete Produced with Portland-Limestone Cement: Canadian Studies,” SN3142, Portland Cement Association, 2010.