EPiC database - Concrete 25 MPa

This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.<br><br>Concrete is a composite material combining sand or other fine aggregates, coarse aggregates, a binder and water. Portland cement is the most commonly used binder, however other binders, such as polymers, may also be used. Supplementary Cementitious Materials (SCM) such as Fly Ash and Ground, Granulated Blast Furnace Slag (GGBFS), are also commonly used as a part replacement for Portland cement. Additives, such as plasticisers can be added to the mix to control concrete properties, such as workability. Concrete is usually combined with steel reinforcement to improve tensile strength.<br><br>Concrete is one of the most commonly used construction materials. It is highly durable and is thus typically used for structural elements in buildings and infrastructure projects. Concrete can be manufactured to meet a variety of strength grades. Concrete 25 MPa is commonly used in domestic and commercial floor construction and is considered to be a multi-purpose concrete mix. The typical mix ratio is 1:1:2 (cement, sand, coarse aggregate).<br><br>

本素材隶属于免费的建筑施工环境绩效（Environmental Performance in Construction, EPiC）数据库。EPiC数据库采用全面的混合生命周期清单方法，收录了250余种建筑材料的隐含环境流系数。

混凝土是一种由砂或其他细集料、粗集料、胶凝材料与水复合而成的复合材料。硅酸盐水泥是最常用的胶凝材料，但也可使用聚合物等其他胶凝材料。粉煤灰、粒化高炉矿渣粉（Ground Granulated Blast Furnace Slag, GGBFS）等辅助胶凝材料（Supplementary Cementitious Materials, SCM）也常被用于部分替代硅酸盐水泥。还可在混合料中加入塑化剂等外加剂，以调控混凝土的工作性等性能。混凝土通常会搭配钢筋使用，以提升其抗拉强度。

混凝土是应用最广泛的建筑材料之一，其耐久性极佳，因此常被用于建筑与基础设施项目的结构构件中。混凝土可根据需求定制为不同强度等级的产品。25MPa强度等级的混凝土常用于民用与商业建筑的楼面施工，属于多功能混凝土配合比，其典型配合比为1:1:2（水泥、砂、粗集料）。