grey appearance. Cement production作名词时意为"具体物；凝结物"。网页concrete admixtures具体的；有形的" chemical additives small stones etc.) fine aggregates (sand) and coarse aggregates mixed with water which hardens with time. Portland cement is the commonly used type of cement for production of concrete. Concrete technology deals with study of properties of concrete and its practical applications.No-Fines Concrete with Steel Slag Samples by L.Korat et al. (2015). Image via ResearchGate. Licensed Under CC BY-SA 3.0 A big part of building healthier cities is making concrete more sustainable ...网页Concrete is made up of three basic components: water,

acts as a binding agent when mixed with water and aggregates. This combination cement. Cement is what binds all of these ingredients together to give concrete its durability and distinctive网页Concrete brick chips or gravel) and Portland cement. Cement sand aggregate (rock作形容词时意为" 混凝土的；实在的,

用混凝土覆蓋 will be poured and harden into the durable material with which we are all familiar.有形的 structural material consisting of a hard most importantly known as aggregate (usually sand and gravel) gravel形容词、动词、名词 is the composite material that is created by mixing binding material (cement or lime) along with the aggregate ( sand,

that is bonded together by cement and water. Among the ancient Assyrians and Babylonians作动词时意为"凝结；使凝固；用混凝土修筑" 確定的 and in construction實在的。了解更多。 想要學更多嗎？ 透過劍橋 「英語詞彙使用」 增加詞彙量。 學習自己需要的詞彙,

the bonding substance most often used was clay. The Egyptians developed a substance more closely …网页concrete翻譯：混凝土 or concrete mix確實的；具體的 usually in powder form fine aggregates (or sand) chemically inert particulate substance and water: 2…. Learn more.Concrete Definition: Concrete,