灵鹊做题网英语翻译There are still concrete structures today that were made
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英语翻译
There are still concrete structures today that were made by the Romans.Modern cement was developed in the 18th century.Combining the proportioned amounts of lime,iron,silica,and alumina,and burning them in a rotating oven or kiln (Fig.6.4) at about 3,000T creates today' s Portland cement.The product from the kiln is known as clinker.To achieve the final usable product cement,the clinker is ground to a very fine consistency.Cement is bagged in 94-1b bags or sold by the ton in bulk.The types of cement are shown in Table 6.1.
Concrete is a mixture that contains cement,sand,gravel,water,and usually additives.The cement is the material that causes the other ingredients to adhere to one another.The water is needed to cause the cement to hydrate.Concrete does not harden by drying,but by hydration.The aggregate used to make concrete should be uniformly graded to provide a good t"111 of all the spaces between the individual pieces of aggregate.The sand will fill the small spaces in the mix.Gap-graded aggregates have certain particle sizes entirely or mostly absent.The lack of two or more successive sizes can create segregation problems with the concrete mix.The amount of water used in the mix should not be excessive,because excess water eventually evaporates,leaving small voids in the spaces it once occupied.The amount of water is controlled by specifying the water/cement ratio,the amount of water in relation to the amount of cement.
The water/cement ratio is defined as the ratio by weight of the free water content to the cement content.It has been long accepted that a low free water/cement ratio in a concrete mix is essential for the concrete's subsequent strength and durability.There are many different additives and they are used for a variety of purposes from changing the color of the concrete to shortening or lengthening the time for the concrete to harden.
There are still concrete structures today that were made by the Romans.Modern cement was developed in the 18th century.Combining the proportioned amounts of lime,iron,silica,and alumina,and burning them in a rotating oven or kiln (Fig.6.4) at about 3,000T creates today' s Portland cement.The product from the kiln is known as clinker.To achieve the final usable product cement,the clinker is ground to a very fine consistency.Cement is bagged in 94-1b bags or sold by the ton in bulk.The types of cement are shown in Table 6.1.
Concrete is a mixture that contains cement,sand,gravel,water,and usually additives.The cement is the material that causes the other ingredients to adhere to one another.The water is needed to cause the cement to hydrate.Concrete does not harden by drying,but by hydration.The aggregate used to make concrete should be uniformly graded to provide a good t"111 of all the spaces between the individual pieces of aggregate.The sand will fill the small spaces in the mix.Gap-graded aggregates have certain particle sizes entirely or mostly absent.The lack of two or more successive sizes can create segregation problems with the concrete mix.The amount of water used in the mix should not be excessive,because excess water eventually evaporates,leaving small voids in the spaces it once occupied.The amount of water is controlled by specifying the water/cement ratio,the amount of water in relation to the amount of cement.
The water/cement ratio is defined as the ratio by weight of the free water content to the cement content.It has been long accepted that a low free water/cement ratio in a concrete mix is essential for the concrete's subsequent strength and durability.There are many different additives and they are used for a variety of purposes from changing the color of the concrete to shortening or lengthening the time for the concrete to harden.
一部分人工翻译..
目前,罗马人造房子依然在用混凝土..发达国家在18世纪都用水泥..结合比例的金额石灰,铁,硅,氧化铝,并烧毁他们在旋转炉或窑（图6.4 ）约三零零零吨创造了今天奇摩波特兰水泥.该产品从窑称为熟料.要达到最后的可用产品水泥,熟料,是地上一个很好的一致性.袋装水泥是在94 - 1B签证袋或出售由吨散装.该类型的水泥显示在表6.1 .
混凝土是一种混合物,包含水泥,砂,砾石,水和添加剂,通常.水泥是材料的原因,其他的成分,坚持一个另一个.水是需要事业的水泥,以水合物.具体的不硬化干燥,但水化.总结用来制造混凝土应均匀梯度提供一个良好的T “型111的所有位之间的个别件总结.沙子将填补小位在组合.差距分级总量是有一定的颗粒大小,完全或大部分缺席.缺乏两个或两个以上的连续大小可以建立隔离的问题,与混凝土配合比.数额所用的水混合,不应过度,因为多余的水份蒸发,最终,留下小空隙,在空间,它一旦被占领.数额水是由指定的水/水泥的比例,耗水量在有关金额水泥.
水/水泥的比例,是指比例按重量计算的自由水含量,以水泥的内容.它已久的接受一个低游离水/水泥的比例,在一个混凝土配合比是必不可少的具体随后的强度和耐久性.有很多不同的添加剂及他们用于多种用途,改变颜色的混凝土,以缩短或延长时间,为混凝土硬化.
目前,罗马人造房子依然在用混凝土..发达国家在18世纪都用水泥..结合比例的金额石灰,铁,硅,氧化铝,并烧毁他们在旋转炉或窑（图6.4 ）约三零零零吨创造了今天奇摩波特兰水泥.该产品从窑称为熟料.要达到最后的可用产品水泥,熟料,是地上一个很好的一致性.袋装水泥是在94 - 1B签证袋或出售由吨散装.该类型的水泥显示在表6.1 .
混凝土是一种混合物,包含水泥,砂,砾石,水和添加剂,通常.水泥是材料的原因,其他的成分,坚持一个另一个.水是需要事业的水泥,以水合物.具体的不硬化干燥,但水化.总结用来制造混凝土应均匀梯度提供一个良好的T “型111的所有位之间的个别件总结.沙子将填补小位在组合.差距分级总量是有一定的颗粒大小,完全或大部分缺席.缺乏两个或两个以上的连续大小可以建立隔离的问题,与混凝土配合比.数额所用的水混合,不应过度,因为多余的水份蒸发,最终,留下小空隙,在空间,它一旦被占领.数额水是由指定的水/水泥的比例,耗水量在有关金额水泥.
水/水泥的比例,是指比例按重量计算的自由水含量,以水泥的内容.它已久的接受一个低游离水/水泥的比例,在一个混凝土配合比是必不可少的具体随后的强度和耐久性.有很多不同的添加剂及他们用于多种用途,改变颜色的混凝土,以缩短或延长时间,为混凝土硬化.
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