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How to distinguish between good and bad cement used in cement pipes?

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更新时间:2018年09月13日10:14:32 打印此页 关闭 Clicks: 983 Updated: September 13, 2018 10:14:32 Print this page Close

The cement of the general cement pipe making machine is named after the title of the chief hydraulic mineral of cement , and is named with the title of mixed materials or other appropriate titles, including portland cement , general portland cement , slag portland cement , pozzolanic portland cement Fly ash portland cement , composite portland cement , limestone portland cement , mainly used for industrial and civil construction of houses, roads, airports, bridges, etc.

Special cement is named for its special purpose and can be named different types, such as A-grade oil well cement , masonry cement , dam cement, etc.

Performance cement is named after the primary hydraulic property of cement . It is named after the primary property of cement , and can be named by different types or mixed materials, such as fast hard portland cement , low heat slag portland cement , and expanded sulphoaluminate. Cement, etc.

Generally speaking, the coarser the sand, the higher the strength of the cement mortar. However, if the strength is too high, it will also affect the quality of the project. The ground leveled with high-strength cement mortar will crack.

When buying sand, it is particularly necessary to be alert to the situation where the merchant replaces sand with fine sand and sea sand instead of natural sand or river sand. Although the sea sand is clean, the high salinity and alkalinity will greatly affect the quality of the project. Therefore, the state prohibits the use of sea sand in the construction and decoration. If you want to distinguish whether you bought sea sand, you can check whether the sand contains a fine shell of marine life.

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