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This week, the prices of sand and gravel in six provinces and one city in East China were mixed. Market performance by region

This week, the prices of sand and gravel in six provinces and one city in East China were mixed. Market performance by region

Shanghai market (Shanghai sand and gravel price), according to feedback, the construction of Shanghai mixing station has improved significantly at present, with many local municipal and infrastructure projects starting one after another, and the demand has picked up obviously. The price of Shanghai sand and gravel has not changed for the time being this week. Currently, the price of natural sand is reported to 139 yuan/ton, that of machine-made sand is reported to 114 yuan/ton, and that of 16-25mm crushed stone is reported to 103 yuan/ton. Hangzhou market in Zhejiang province (Hangzhou sand and gravel price). Zhejiang sand and gravel shipments rebounded slightly this week. stimulated by the Asian games, the project progress in Hangzhou market accelerated and the housing construction recovery was better. Hangzhou second-hand housing transactions also began to pick up. concrete shipments continued to pick up. Hangzhou sand and gravel prices remained unchanged this week. now natural sand is reported to 189 yuan/ton, machine-made sand is reported to 151 yuan/ton, and 16-25mm gravel is reported to 130 yuan/ton, it is expected that Zhejiang sand and gravel may have a double rise in volume and price next week. Nanjing Market in Jiangsu Province (Nanjing Sand and Stone Market). According to feedback, sand and stone stocks in many ports in Jiangsu Province have begun to rise, especially Jiangyin Port and Nanjing Port. At present, the resumption of construction projects is relatively good. Infrastructure and municipal administration are mainly exerting efforts. Local demand is picking up. This week, Nanjing sand and stone rose by 3 yuan/ton compared with last week. Now sand in natural sand is reported to 148 yuan/ton; 16-25mm gravel reported 102 yuan/ton, the market price increase sentiment is strong, it is expected that in the short term Nanjing sand and gravel market still has room for recovery. Fuzhou market in Fujian province (Fuzhou sand and gravel price). according to recent feedback from Fujian market, the competition for sand and gravel in the Yangtze river basin is fierce and the local multi-mine inventory is high, resulting in downward pressure on Fuzhou sand and gravel general material market and the high standard material market remaining stable. the price of Fuzhou sand and gravel has not changed for the time being this week. now the imported natural sand is reported to 143 yuan/ton, the manufactured sand is reported to 71 yuan/ton and the crushed stone 67 yuan/ton. It is expected that the price of Fuzhou sand and gravel will be stable in the short term. Hefei market in Anhui Province (Hefei sand and gravel price), the sand and gravel market in the province has been gradually started, the downstream construction progress has been accelerated, and the procurement volume has increased. However, the availability of funds for some projects is not clear, and the supply side is more cautious. In addition, the pressure of outward competition in southern Anhui is greater, and the overall shipment volume has not increased much. At this stage, the sand and gravel price remains stable. Hefei natural sand medium sand reported 169-172 yuan/ton; Machine-made sand medium sand reported 119-121 yuan/ton; 16-25mm crushed stone reported 132-135 yuan/ton.

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2022

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01

The weather is getting better, and the sand and gravel market in East China is picking up.

The weather is getting better, and the sand and gravel market in East China is picking up.

From February 27 to March 3, 2022, the national comprehensive sand and gravel price was 108.3 yuan/ton this week, which was flat month-on-month; the average price of sand and gravel in the East China market was 120.1 yuan/ton, up 0.4 percent week-on-week. In terms of varieties, the average price of natural sand in East China was 148.7 yuan/ton, up 0.4 percent week-on-week; the average price of machine-made sand was 108.3 yuan/ton, up 0.4 percent week-on-week; and the average price of crushed stone was 103.3 yuan/ton, up 0.4 percent week-on-week. Demand side: The weather in many parts of East China improved, concrete capacity utilization increased by 3.9 percentage points from last week, and the construction progress of East China project feedback was better than last week. Supply side: According to a hundred years of construction research, the port sand and gravel trade lively, traders hoarding sentiment is strong, this week the overall shipment of East China sand and gravel was 6.6594 million tons, up 18.43 percent month-on-month. East China market by the weather to improve, to promote the sand and gravel market to accelerate the recovery, is expected to next week's shipments still have room for improvement. Average price trend of sand and gravel in China and East China in 1. From the sand and gravel price trend, the national sand and gravel trend is stable, East China sand and gravel slightly twists and turns. As of March 3, the average price of sand and gravel in the East China market was 11.8 yuan/ton higher than the national average price of sand and gravel, the price of machine-made sand was higher than the national 10 yuan/ton, the price of crushed stone was higher than the national 10 yuan/ton, and the price of natural sand was higher than the national average price of 15 yuan/ton.

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2022

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07

Prices are stable and strong, and sand and gravel shipments from coastal ports continue to increase.

Prices are stable and strong, and sand and gravel shipments from coastal ports continue to increase.

Market Analysis This week, the comprehensive average price of sand and gravel in coastal cities was stable and strong. The average price of natural sand was 122 yuan/ton, which was flat from the previous month; the average price of machine-made sand was 79 yuan/ton, up 1.27 from the previous month; the average price of gravel was 75 yuan/Ton, flat from the previous month. Bohai Rim: At the beginning of September, the delivery was obviously better than that in July and August. The demand in downstream Jiangsu and Shanghai picked up slightly. Traders were active in picking up the goods. Now each port delivers about 80000 tons a day. Large ships deliver Jiangsu and small ships deliver Shanghai mainly. The demand for machine-made sand and crushed stone is good. It is expected that the delivery volume will be stable and strong next week...

12

2021

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11

What are the classifications of cement and sand?

What are the classifications of cement and sand?

Cement is divided into: ordinary Portland cement, slag cement, fly ash cement, pozzolan cement four models. Labels commonly used for: 32.5, 42.5 two models. The variety of cement is very important, we must ask what kind of cement, because the performance of the four kinds of cement is not the same, and can not be mixed with each other. Sand is generally medium sand. There are only two kinds of sand to be delivered to the construction site: one is medium sand (divided into river sand, river sand and dry sand), followed by quality river sand and dry sand. The other is mixed sand (also divided into river sand, river sand, dry sand). The role of sand is concrete mixing, masonry, plastering. Mixed sand (that is, sand and stone) is used for backfilling. Dealing with people on the construction site is mainly for material workers. Generally, kickbacks need to be made. As for the payment, it may have to be paid once a month and finally settled. Another thing is not to be shoddy. People on the construction site have poisonous eyes. The silt content of sand and gravel can be seen at a glance. There is also the need to ensure that the quantity leaves a good impression on the construction site, so that the construction site will think of you if there are any more projects. When it's okay, greeting the material workers, constructors, quality inspectors, team leaders and warehouse keepers on the construction site to have some food (about 300~500 for a little money) can have unexpected effects.

20

2023

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09

What is the Yangtze River sand, what harm

What is the Yangtze River sand, what harm

Hazards of sand mining in the yangtze river: The riverbed sand and gravel is the material basis for the stability of the river channel and the balance of water and sand. The sand available for mining is limited every year, and unrestricted and predatory mining of river sand will destroy the river regime of the Yangtze River and the balance of scouring and silting of the Yangtze River bed. One is to affect the safety of flood control. Excessive sand mining in riverway leads to serious undercutting of riverbed, forcing banks in deep troughs and cutting feet in rapids, resulting in dangerous sections of levees; sand mining near the embankment makes the deep lodge stick to the bank, the relative height of the embankment body increases and the bank slope becomes steeper, which easily causes the collapse of the embankment and endangers the safety of the embankment; sand mining near the embankment; mining river sand near water conservancy projects such as culvert gates, pumping stations and bank expansion projects seriously threatens the safe operation and flood control function of these water conservancy projects. Second, it affects the stability of the river. During the long-term evolution of the river channel, a relatively stable riverbed form is formed through the interaction between the sediment-laden flow and the riverbed. Large-scale and disorderly illegal sand mining has destroyed the riverbed morphology and river regulation project, changed the balance of sediment transport in local river sections, caused local changes in river regime and bank collapse, and adversely affected the stability of river regime in local river sections. If the amount of sand mined indiscriminately is too large, and it is mostly in the main river inflow part and Jiangxin Chau beach, it will cause the river bed to cut down, resulting in the change of river flow potential and the lowering of water level, which will affect the function of hydrological observation and other engineering facilities, reduce the exertion of the original engineering benefits, and seriously affect the overall flood control planning and regional supply, irrigation and drainage system.

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2023

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