Recently, the Bureau of Housing and Urban-Rural Development of Wenzhou City announced the results of sampling inspection on the quality of ready-mixed concrete sand from November to December 2022. A total of 66 groups of sand from 55 enterprises in the city were sampled, and the chloride ion content of sea sand, river sand, artificial sand, river sand and artificial sand mixed sand used by the enterprises were all qualified. The housing (construction) bureaus of
all counties (cities, districts and provincial industrial agglomeration areas) and all relevant units:
According to the requirements of the Notice on Further Strengthening the Quality Management of Ready-mixed Concrete Sand in Our City (Wen Zhu Jian Fa [2022] No.34), from November to December 2022, Local housing and construction departments inspected the sand used by ready-mixed concrete enterprises within their jurisdiction. A total of 66 groups of sand from 55 enterprises were sampled in the city, including 3 groups of sea sand, and the chloride ion content was all qualified; There were 10 groups of river sand (including 1 group for measuring chloride ion content and 9 groups for measuring silt content), 52 groups of artificial sand (including 10 groups for measuring chloride ion content and 42 groups for measuring stone powder content), and 1 group of mixed sand (including artificial sand and river sand, measuring chloride ion content). The results of the sampling inspection (see annex) are now published and subject to social supervision. The telephone number for supervision and reporting is 88820233. Local housing and construction departments are requested to continue to strengthen the supervision of the quality of sand used by ready-mixed concrete enterprises within their jurisdiction.
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