Hongxing Machinery crushers are used for pebble, gravel, and rough aggregate processing. Rough aggregate (stone) types: pebble, gravel. Building pebbles and gravels new national standard makes the types, specification, type and use clear. Both the building pebbles and gravels have three categories, which are used concrete in each level (Less than C30 level or more than C60 level). For alkali aggregate problems of sand and stone, the new standard all makes provisions.
1. Harmful impurities: clay, silt, fine powder, sulfate, sulfide and organic impurity, which are in compliance with regulations.
2. The particle shape and surface features: Gravels have rough surface and air voids and the gravels can bond with the cement in a well condition, but the workability is not so good. Pebbles bond with the cement in a bad condition but the mixture workability is very well. The coarse aggregate whose width and length and height are nearly same is the most suitable material. Needle-shape or sheet-shape grains under stress are easily broken, which will increase voidage, so that the workability will be bad. for these reasons, the materials selection is very important.
3. Maximum size and particle grading.
If the grain size is increased, the specific surface area will be decreased so the cement quantity can also be decreased. For this reason, the grain size should be large as much as possible. But the size should not be too large for the size is restricted by measurement and reinforcement so the grains with large size (over 40mm) are not so good. Maximum grain size must not be more than 1/4 of the minimum side length of structure section and not be more than 3/4 of the rebar smallest interval. For solid sheet, the grain size can reach the 1/2 of the plate thickness but should not be more that 50mm. raymond mill:http://www.hx-china.com/13.html
Hongxing engineers have the crusher know-how to design and manufacture a system that helps you meet your product specifications. Plus, every Hongxing Machinery crusher engineer has the practical field experience to devise the critical maintenance-friendly designs that save you time and labor over many years of productive crusher operation.
Impact crusher and sand maker can form the sand producing line. When stone crushing, the primary crushing device mainly is crusher and adjustment can be done according to the particle size of materials. Hongxing Machinery crusher devices mainly conclude jaw crusher, impact crusher, hammer crusher and cone crusher, etc. The coarse aggregate is the crushed aggregate whose grain size is more that 4.75mm, called aggregated rock. The common used aggregates are gravels and pebbles, gravels are the natural rocks or rocks that come through mechanical crushing and screening, whose grain size is over 4.75mm. Pebbles are formed by natural weathering, water flow handling and separation and accumulation and the grain size is also more than 4.75mm. Hongxing Machinery crusher devices can produce the building pebbles and gravels, which can meet technical requirements of the national standard GB/T 14685-2001 building pebbles and gravels. The choice range of materials is very wide. Ordinary ores can be processed by corresponding processing equipments. Finished products can meet the demands and can used for buildings.
- Author Articles
- More From This AuthorRotary kiln is refers to rotating calcining kiln (also known as rotating kiln), which belongs to thermal equipment. Rotary kiln can be divided into metallurgy kiln, chemical engineering kiln, and building...Introduction to the Kiln： Rotary kiln also called bauxite rotary kiln,magnesia rotary kiln,zinc oxide rotary kiln Kaolin with the features of high white content,soft texture, easy to disperse and...Henan Hongxing Company is the leading professional supplier solution,equipment and service for grinding industry.In past 20 years,bearing the enterprise aim of'Better quality,Better service', Henan Hongxing...Rock crushers are heavy-duty machines that reduce the size of rock according to specific requirements. They are most widely used in mining applications but have also been adapted to the construction and...The future of 500-odd stone-crushing units around Bangalore is uncertain, what with the March 6 deadline to shift these units to ‘safe zone’ approaching fast. The Karnataka State Pollution Control...
- Related Articles
- Related ArticlesHongxing Machinery Science and Technology Co., Ltd. developed the production of construction waste recycling processing equipment – mobile crusher station. Hongxing Machinery mobile crushing station has...Hongxing Machinery Science and Technology Co., Ltd. developed the production of construction waste recycling processing equipment – mobile crusher station. Hongxing Machinery mobile crushing station has...When the ball mill loading insufficient, the start will be difficult: According to the known calculation method of the traditional design of the power consumed in a ball mill, if the lack of a ball mill...When the ball mill loading insufficient, the start will be difficult: According to the known calculation method of the traditional design of the power consumed in a ball mill, if the lack of a ball mill...Henan Hongxing Machinery Heavy Machinery Co.,Ltd believes that ,the good quality steel balls can improve the production efficiency and reduce the production cost , so that bring economic benefits for the...
- Latest Articles
- Latest ArticlesIn the recent time internet has really changed the world. People can talk to anyone sitting thousand miles apart and share any data via email. Dealing with the development of internet speed, the demand to send...If you are building a house with more than one level, you need to make sure that is accessible to all members of your family. Incorporating a residential elevator in your new home is a good idea, especially...Hongxing Machinery Science and Technology Co., Ltd. developed the production of construction waste recycling processing equipment – mobile crusher station. Hongxing Machinery mobile crushing station has...Summer is a season when everyone feels a lot tensed and uncomfortable. This is because of the way in which our body reacts to the changes in atmosphere. As the summer season approaches, the sunrays fall...