Sand is a Chinese character, pronounced shā, also called sand, and it is a building material. It is called fine aggregate in architecture and can be divided into coarse sand, medium sand and fine sand according to different diameters. Sand can also refer to substances that are subdivided into sand. Sand generally contains a small amount of soil, and the soil content is limited by the building grade.
Sand, the mountains around the cave. The concept of Feng Shui holds that mountains are thick and fat, thin and hungry, clear and expensive, sad and broken, long and brave, narrow and low, bright and ambitious, dark and fascinated, filial and arrogant. The shape of this mountain is changeable. Those who look at the square from the left and the circle from the right, look at the right from the top, look at the side from the bottom, face up ugly, and look beautiful from the side.
To change the mountain shape, the key lies in acupuncture points. Good acupoint selection can make distant mountains closer, high mountains lower, evil mountains more beautiful, ugly mountains more beautiful, and slopes more correct. The shape of sand is very different, and the movement of stones is also very different. Sand is connected with water, sand closes water and water closes sand. The sand in the cave is close to Chen Yuanshui, the sand in the dragon and tiger cares about water, the sand in the recent case is close to the water in the hall, and the sand in the outer yard is close to the dragon water.
The front and back sides of the cave are covered with sand to keep out the evil wind. What came out of the dragon's arms was sand protector, which blocked the concave wind and increased the momentum inside. Around the cave is facing the sand, while in front of it is facing the sand. Water to the left, sand to the right. Water to the right, sand to the left.
Standard and method for testing sand:
1, the mud content does not exceed the standard, yellow mud does not flow, and you can't see mud where there is no mud in your hand. If the silt content exceeds the standard, it shall be rejected or used.
2. No sundries, big stones, bricks, steel bars, wood, etc. , and the number of sundries can't exceed 5 visually after the vehicle is dumped, otherwise the ton will be deducted.
3. If the pebble content does not exceed the standard, grab a handful of sand by hand, more than half of which are pebbles the size of beans, and visually there are too many pebbles. If the pebbles are manually inspected for more than 5 times, the car must be returned, otherwise the ton will be severely deducted.
4, moisture content meets the requirements. The standard is that there is not a lot of dripping water around the vehicle, and it is best not to drip water. After grasping by hand, the sand can naturally disperse and not reunite. Tons can be deducted if the requirements are exceeded.
5, the operator test standard sand silt content is less than 3%, water content is less than 5%. In case of any dispute, the inspection by the inspectors shall prevail.