portland project 中文意思是什麼
portland project
解釋
portland計劃-
Synopsis : by the high elastic emulsion material, mixes many kinds of guards against the crack to help the medicinal preparation, becomes after the different production craft manufacture, with the ordinary portland cement according to the proportion coordination, forms one kind of cement base flexibility anti - crack material, it has the intensity actually not to crack, is suitable keeps warm the surface layer to outside and guards against the crack project to plaster the surface
簡介：由高彈性乳膠材料，調配多種防裂助劑，經殊生產工藝製作而成，與普通硅酸鹽水泥按比例配合，形成一種水泥基柔性抗裂材料，其具有強度卻不開裂，適用於外保溫面層及防裂工程的抹面。 -
The three gorges project is a world - famous water conservancy center project. the main parts of it are the body of concrete dam, permanent ship casket, electricity - produce department, etc. these are all large volume concrete which influence the ageing resistance of the project directly, and they also have much to do with ( he concrete of moderate heal portland cement armature and concrete aggregate, etc
長江三峽工程，是舉世矚目的特大型水利樞紐工程，工程的主體：混凝土大壩壩體、永久船閘，發電廠房等均為大體積混凝土，這些混凝土工程的耐久性既與施工質量有直接關系，也與組成壩體的小熱硅酸鹽水泥、骨料、鋼筋等原料有密切的關系。
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