WET SIZING OF AGGREGATES
THE USUAL METHOD OF SCREENING AGGREGATES IN MOIST CONDITION IS UNSATISFACTORY IN MANY RESPECTS. IN PARTICULAR, THE SEPARATION OF FINE AGGREGATES INTO DIFFERENT SIZE FRACTIONS AND THE TOTAL REMOVAL OF DELETORIOUS FINE-GRAINED SUBSTANCES OFTEN CONSTITUTE THE NECESSARY CONDITIONS WHICH MUST BE FULFILLED IN ORDER TO OBTAIN A GOOD HOMOGENEOUS COMPOSITION OF THE AGGREGATES. WET SCREENING USED IN COMBINATION WITH HYDRAULIC METHODS OF SEPARATION AFFORDS A VALUABLE POSSIBILITY IN THIS CONNECTION. DURING THE CONSTRUCTION OF THE OSSAUSKOSKI HYDRO-ELECTRIC POWER STATION, SUCH METHODS OF SIZING AGGREGATES FOR CONCRETE WERE EMPLOYED FOR THE FIRST TIME IN FINLAND. IN SPITE OF SHORT DURATION OF THIS WORK, AND NOTWITHSTANDING THE ABSENCE OF PREVIOUS EXPERIENCE, THE USE OF THE WET SIZING METHOD BROUGHT ABOUT A SAVING IN CEMENT WHICH WAS GREAT ENOUGH TO COVER THE ADDITIONAL COSTS DUE TO THE APPLICATION OF THIS METHOD AS WELL AS THE COSTS OF PURCHASE AND ERECTION OF THE WET SIZING EQUIPMENT. THE RESULTS DEMONSTRATED THAT THE USE OF A HYDRAULIC METHOD OF SEPARATION CAN BE ECONOMICAL AND ADVANTAGEOUS FROM AN ENGINEERING POINT OF VIEW IN SEVERAL RESPECTS, EVEN IN NORTHERN REGIONS. /AUTHOR/
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Supplemental Notes:
- Vol 10, No 4, PP 303-316
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Authors:
- LIIMATAINEN, A
- Publication Date: 1966
Media Info
- Serial:
Subject/Index Terms
- TRT Terms: Aggregates; Economics; Hydraulics; Methodology; Sieve analysis; Utilization
- Uncontrolled Terms: Separation
- Old TRIS Terms: Wet sieving
- Subject Areas: Economics; Geotechnology; Highways; Research;
Filing Info
- Accession Number: 00217537
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 12 1994 12:00AM