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| Properties and types of cement and other raw materials | |
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| Tweet Topic Started: 2 Dec 2015, 10:36 AM (64 Views) | |
| joanna | 2 Dec 2015, 10:36 AM Post #1 |
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Cement is a kind of water hardening cementitious material, which is mainly in the concrete. In civil engineering is commonly used in common cement. Cement in concrete mix proportion according to the characteristics of various cement, its dosage is determined according to the strength index mobile brick making machine, cement strength is reflected in the strength of the cement grade (formerly known as the label). The strength grade of cement is formed by the compressive strength of 28d mortar test block concrete batch plant MP planetary concrete mixer, such as the strength of the cement 28d with the strength grade of 425 is about 42.5Mpa. Cement storage is more than 3 months from the date of delivery, and the strength of the cement is to be re examined. Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:mobile concrete mixer for sale,concrete batching plants,concrete mixer,blocking making machine,concrete pump,etc. The strength of cement in concrete is slightly higher than that of concrete. When the strength of concrete is very low, it can be used to save cement. The maximum dosage of cement in each of the concrete is not more than 550 kg. In line with the national standard of drinking water, can be used for the production of concrete. Other water sources can be used after the inspection of qualified. Admixture and admixture are two additional materials used to improve the production process and the performance of concrete, to meet special needs. And the application of the material in the production and application of concrete plays an increasingly important role. The content of the admixture is usually greater than the cement dosage of 5%, the fineness of the same or more fine cement. The dosage of admixture is usually less than 5% of cement. |
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