1 Calculation of powder content of machine-made sand Formula

How to Deal With The High Content of Stone Powder in …

Generally speaking, a stone powder content of 10% to 14% is appropriate. For C30 concrete, the stone powder content is 10-15%. For C50 concrete, the stone powder content is 5-10%. How to deal with the high content of stone powder in machine-made sand? 1. Use the sand washer. After being crushed by the crusher, the material enters the vibrating ...

Separation and Recovery of Stone Powder in Machine …

2021-9-6 · 2. Wheel sand washer + fine sand recycling machine After the materials are crushed for sand making, we can arrange wheel sand washer equipment at the lower section of the sand making machine.The wheel sand washer equipment can clean the excess stone powder, soil and impurities in the machine-made sand, which has the characteristics of good cleaning effect, …

Technical Application of Machine-made Sand in the …

2021-1-1 · [1] Yahia A, Tanimura M and Shimoyama Y. 2005 Rheological properties of highly flowable mortar containing limestone filler-effect of powder content and W/C ratio[J] Cement & Concrete Research 35 532-539 Go to reference in article Google Scholar [2] Adjoudj M''hamed, Ezziane K, Kadri E H et al 2014 Evaluation of rheological parameters of mortar containing …

Effect of Stone Powder Content on Mechanical Properties …

2022-5-11 · The stone powder content of manufactured sand is generally as high as 10–20%. Compared with natural sand, manufactured sand has the characteristics of irregular grain shape, unreasonable gradation, and high stone powder content (Wang et al. 2018; Zheng et al. 2021), which limits the popularization and application of manufactured sand concrete.The particles …

Method of mix proportion design for concrete with …

The unified formula is proposed to calculate the water to cement ratio of the plastic, pasty and flowing concrete. ... The optimum content of stone powder in machine-made sand is …

How to control the content of stone powder in machine …

2021-11-18 · The stone powder content in machine-made sand produced by rock-on-rock crushing cavity is lower and the cost is also lower. Combination of the two crushing methods can reasonably control the stone powder content. (3) Mixed production: Combine sand making machine and rod mill in the production plant to increase stone powder content.

Influence of stone powder content of machine-made sand …

2021-6-29 · In the machine-made sand, the part less than 0.075mm is called stone powder. The content of machine-made sand and gravel powder is stipulated in the transportation industry regulations. The powder content of the machine-made sand used along a certain expressway in northeastern Yunnan, Yunnan, has basically exceeded the allowable value of the ...

How to Calculate Cement, Sand and Coarse …

2022-6-23 · For Cement, Sand and Coarse Aggregate. This is a Volumetric Calculation. Assuming we need 2 m3 of concrete for M20 Concrete Mix, (Mix Ratio, M20 = 1 : 1.5 : 3) Therefore, Cement Quantity = (Cement Part / …

Influence of stone powder content in machine-made sand …

2021-6-1 · By changing the amount of stone powder in the machine-made sand, the ratio of cement to water and sand to grout, the change in the tensile value of the steel bar in concrete can be found. After a lot of test data to prove that the content of stone powder is 6%, the mortar ratio is 1: 2.5, the water-cement ratio is 0.40, the content of water ...

The standard of powder content of machine made sand

2022-6-19 · The stone powder content of machine-made sand is set at 3%, 5% and 7% according to the concrete strength grade, which is 2% wider than the mud content of natural sand. At the same time, in order to prevent the machine-made sand from being mixed with excessive soil due to various factors during the mining and processing process to have a ...