What is the role of stone in concrete

Sand and gravel are one of the main components of concrete. Sand and gravel play the role of filling and reinforcement in concrete, and play a vital role in the performance and strength of concrete.

Sand and gravel act as a filler in concrete. Concrete is made by mixing cement, sand, stones and water in certain proportions. Sand and gravel have a filling effect between particles, filling the gaps in the cement gel, making the concrete more dense and compact. This filling action helps reduce shrinkage and cracking of the concrete and increases its durability.

Sand and gravel enhance the strength and stability of concrete. The particles of sand and gravel form a mechanical connection with the cement gel, which increases the cohesion and compressive strength of the concrete. Sand and gravel can also improve the shear strength and impact resistance of concrete, and increase the stability of concrete. In addition, sand and gravel can also disperse the stress between cement particles and improve the crack resistance of concrete.

Comments

Maintenance and storage method of vibrating screen motor and common troubleshooting

The service life of the vibration motor determines the operating life of the entire screen. Therefore, in the normal production, we must always pay attention to whether the working state of the vibrating screen equipment is normal, whether the vibrating motor is in good working condition, timely check and solve some small abnormalities and faults, and do a good job of cleaning and maintenance, because this can greatly increase the vibration screening. Machine and vibration motor life. dewatering screens supplier Maintenance storage precautions during vibrating screen motor operation The equipment can not be completely dust-free, but also has a harsh environment and dusty conditions. The vibration motor is airless and heat-cooled. It relies on natural cooling, so it must be specially maintained. The following is the maintenance content. 1. It is necessary to pay attention to whether the vibration is abnormal during the use process; 2. Always check if the bolts used in the m...

Small capacity sand gravel production plant design scheme

Sandstone production line equipment configuration Applicable materials: river pebbles, pebbles, bluestone, granite, basalt, limestone, cement clinker, marble, iron ore and other more than 200 kinds of ore materials. High hardness rock: jaw crusher (coarse crushing first crushing), cone crusher (medium-fine crushing), and auxiliary equipment such as raw material silo, vibrating feeder, belt conveyor, circular vibrating screen. Suitable for granite, tablets Hemp and orthoclase, limestone, pebble, gravel, sandstone, sandy, lime schist, magnesite, dolomite, marble Low hardness rock: jaw crusher (coarse crushing first crushing), impact crusher (medium-fine crushing), and auxiliary equipment such as raw material silo, vibrating feeder, belt conveyor, circular vibrating screen. Reasonable matching according to the output demand of sandstone plant) Suitable for gravel granite, marl limestone, clay sandstone, sand mica schist, anhydrite Advantages of the production line: The production...

300t per hr chalcopyrite washing equipment

Chalcopyrite is a copper-iron sulfide mineral. It often contains trace amounts of gold and silver. Crystals are relatively rare and are tetrahedral-shaped, mostly irregular granular and dense massive aggregates, as well as kidney-shaped and grape-shaped aggregates. Copper yellow, often dark yellow or mottled. The streaks are black with a greenish tint. Chalcopyrite is a relatively common copper mineral, which can be formed in different environments, but it is mainly the product of hydrothermal action and contact metasomatism, and it can often form deposits of a certain scale. The origin is all over the world. In industry, it is the main raw material for copper smelting. In the field of gemology, it is rarely used alone, occasionally as a substitute for pyrite. In addition, it often participates in the composition of some colored stones, inkstones and jade. The high-efficiency spiral chalcopyrite washing machine is mainly used in the washing, grading, impurity removal, and the washing o...

sunset

Search This Blog