ISSN:
1570-1468
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Conclusions 1. When designing the transport methods of aggregate delivery from the screening plant to the concrete plant it is necessary to have the lowest possible number of transshipment operations, providing at these places the installation of stepped chutes, inclined troughs, and other means widely utilized in foreign practice for preventing crushing and segregation of the material. 2. In cases when a large number of handling operations are required, the screening plants should not be located in the quarries, but directly at the concrete plant, and the sand-gravel mix is conveyed without grading in this case. 3. When building gravel screening plants in quarries and when conveying material screened into different sizes it is necessary to provide control grading of materials at the concrete plants to eliminate the effects of the handling operations on the quality of conveyed materials and to increase their uniformity. Expenses for secondary screening of materials, as indicated by foreign practice, is compensated completely, as the improvement of aggregate uniformity makes it possible to reduce cement consumption by 10 to 15%.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02377422
Permalink