建筑材料外文翻譯及譯文-在線瀏覽
2025-01-05 06:49本頁面
【正文】 forming strander liang, pull string and stem, rolled into foil and plate. Aluminum ponent can like steel use the same method, riveting, bolt connection, low strength welded together. Besides being used for architectural framework and prefabrecated house, aluminum also widely used as an window frame and structure curtain box. Concrete. Concrete is water, sand, stone and ordinary Portland cement mixture. Gravel, artificial light stone, and shells were used in natural ShiLiaoChang. Ordinary silicate cement is contains calcium and clay mixtures. In the heating furnace, and then to a fine powder. Concrete strength es from mixing water farinaceous ordinary Portland cement, then atherosclerosis. In an ideal mixture, concrete by 3/4 volume of sand and stone and 1/4 volume of water mud. The physical characteristics of concrete mixture position is sensitive to changes, therefore according to strength or contraction design position ratio to achieve special results. When concrete dump in template, it contains free water, and no need water action of water will evaporate. With concrete sclerosis, it in a certain period of releasing excess water and shrinking. As a result of shrinkage, the fine cracks. In order to minimize the shrinkage crack, concrete sclerosis must protect wet at least five days. Concrete strength increased over time, because the hydration processes will last for years, In fact, 28 days intensity is considered the standard. Concrete under load is elastic deformation. Although its elastic modulus is steel onetenth, but distortion is same, because its strength also only steel 10. Concrete is essentially a pressive material, its tensile strength can be neglected. Reinforced concrete. Reinforced concrete by placed to undertake in reinforced concrete pulling force. These reinforced in 1/4 inch in diameter ( cm) and 225 inches ( cm) between, the surface has Nick to ensure binding live concrete. Although reinforced concrete in many countries have development, but its discovery should be attributed to a French gardeners, Joseph in 1868 reinforcement strengthening concrete with a cone. The operation is possible, because when a change in temperature, reinforcement and concrete are equal to expansion and contraction. If this is not the case, the temperature changes, the connection between the reinforcement and concrete is destroyed, because the two materials react differently. Reinforced concrete can be pouring into various shapes, for exampl
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