order to fully understand the supply and use of construction sand in Shanghai in the second quarter
of 2023, according to the data of supplier registration, flow list and quality assurance of construction sand in Shanghai Construction Sand Business Management System, the Association analyzed the supply and use of construction sand in Shanghai in the second quarter of 2023, and combined with relevant investigations. The report on the sand market for construction in Shanghai in the second quarter of 2023 is as follows:
I. Transportation of sand for construction to Shanghai
by ship In the second quarter of 2023, the sand for construction in Shanghai was transported to Shanghai mixing station, component station, ready-mixed mortar and other production units by ship, and 13031 ship times occurred.
2. Analysis of
the amount and source of sand used for construction in the second quarter of 2023 The total amount of sand used for construction in the second quarter of
2023 was 16.373 million tons, compared with 3.164 million tons in the second quarter of 2022. An increase of 417.5% and an increase of 9.1% over the consumption of 15.006 million tons in the second quarter of 2021.
According to the sources of sand for construction in the second quarter of 2023, Hunan, Hubei, Jiangxi and other regions accounted for 33%, Jiangsu 30%, Fujian 17%, Anhui 7% and Zhoushan 11%. One third of the sand for construction in Shanghai market is concentrated in the inland areas along the Yangtze River with convenient transportation to Shanghai, and more than one third comes from the northern areas of Jiangsu, Anhui, Shandong and Liaoning, which also have the conditions of inland river and sea transportation, while the remaining less than one third comes from Fujian and Zhoushan.
3. Inspection
of sand used by suppliers for construction In the second quarter of 2023, 194 suppliers issued quality assurance certificates. There are 189 enterprises which entrust the third-party testing institutions for testing, accounting for 97%; there are 0 enterprises which use the cooperative laboratories for testing, accounting for 0%; the other 5 enterprises, accounting for 3%, are the production units and registered suppliers, and use their own internal laboratories for testing. According to the warranty information, the construction sand supplied to Shanghai is qualified.
IV. Proportion
of coarse, medium and fine sand used for construction According to the data in the supplier's warranty, the distribution of coarse, medium and fine sand used for construction in the city in the second quarter of 2023:
in the second quarter of 2023, the sand used for construction in the city is still mainly machine-made sand, accounting for 80%. The proportion distribution of fine, medium and coarse sand shall be consistent with the mix proportion of concrete.
5. The price
of construction sand in this city is analyzed according to the research price of construction sand transaction in Longwu Road Market (Wharf). In the second quarter of
2023, with sufficient supply of machine-made sand on the supply side and supplementary supply of natural sand along the Yangtze River, the overall price of construction sand declined steadily.
With the arrival of continuous high temperature weather, it is bound to have an impact on the construction site; according to the experience of previous years, the production of machine-made sand in other provinces may be affected by power limitation, and it is expected that the price will remain stable in the later period based on various factors.
1. Average price trend chart of natural sand for construction (period 2 weeks) (medium sand)
2. Average price trend chart of machine-made sand for construction (period 2 weeks) (medium sand) 6. Chloride ion content
of sand for construction: a total of 2751 batches of natural sand were tested for chloride ion, and the test results were less than 0.01%, accounting for 99.93%; 0.01-0.02%, accounting for 0.07%; more than 0.02%, zero; A total of 103,53 batches of machine-made sand were tested for chloride ions, and the test results showed that 99.9% of the samples were < 0.01%, 0.1% of the samples were 0.01-0.02%, and none of the samples exceeded 0.02%, all of which met the requirements of the documents and standards of the management department. At present, the control of chloride ion content in the construction sand market in this city has been well done, and the attention to chloride ion content has been normalized.
7. Conclusion
1. The registration of construction sand suppliers and the matching of use units in this city are generally reasonable.
2. In the second quarter of 2023, the total consumption of sand for construction in this city is 16.373 million tons, which is 417.5% higher than consumption of 3.164 million tons in the second quarter of 2022, and 9.1% higher than consumption of 15.006 million tons in the second quarter of 2021. In the first half of 2023, the total amount of sand used for construction in this city is 26.87 million tons, which is 152% higher than that in the first half of 2022 and 13.6% higher than that in the first half of 2021.
3. In the second quarter of 2023, the average price of natural sand and medium sand decreased by 3.6% year-on-year in the second quarter of 2022, and decreased by 17.5% year-on-year in the second quarter of 2021; the average price of machine-made sand and medium sand decreased by 3.9% year-on-year in the second quarter of 2022, and decreased by 13.7% year-on-year in the second quarter of 2021. The price of sand for construction is generally stable and has declined.
4. The suppliers and users of construction sand have formed a habit of attaching great importance to the quality inspection of construction sand, and the chloride ion content and quality of construction sand in this city are generally controlled.
5. On March 11, 2022, the Municipal Housing and Construction Commission issued "Opinions on Further Strengthening the Management of Sand for Construction in Shanghai" (Shanghai Building Materials [2022] 162), which put forward new requirements for the supply, testing, use and supervision of sand for construction in Shanghai according to the new situation and problems of the market mechanism of sand for construction in Shanghai. In particular, measures such as strengthening the management of the source and flow of sand for construction and pilot implementation of the Shanghai mechanism sand supply base are proposed. In the second quarter, four more enterprises entered the Shanghai Mechanism Sand Supply Base through evaluation, and five enterprises have entered the list of the base at present. It can be seen that despite the rapid changes in the construction sand market in this city, the management departments attach great importance to the management of the construction sand in this city, and the management measures are constantly following up and deepening.
Report data source: Shanghai construction sand business management system
浙公网安备33010802003254号