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<br />2
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<br />CONCRETE MANUFACTURE, HANDLING, AND CONTROL
<br />
<br />AGGREGATE CLASSIFICATION
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<br />SECTION P Ala:
<br />21 Requirements........................................,...,......,.., 44
<br />22 Location of plant. . . . . , . . . . . . . . . . , , . . . . , . . . . . . , . . . . . . , . . . .. .....,... 45
<br />23 General description of plant... '.... . ,..... .,. ........ .. .. .. ......,... 46
<br />24 Unloading, scalping, and crushing. . . . . . . , . . . , . . . . . . . . . . . . . 4U
<br />25 Gravel separation........................................,....,.,... 53
<br />26 Sand classification ...............,.................................. 54
<br />27 Rescreening, washing, and loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5\:1
<br />28 Fini,hed aggregate ,torage __ .. .. __ __ __ __ __ __ __ __ . 61
<br />
<br />WATER SUPPLY
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<br />29 "",-ater for classification plant.. . .. . '.' .. . . . . . . . . . . . . "
<br />30 Water for mixing plants. . . .. . .. . .. . .. . , . . . . . . . . " . . . .
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<br />62
<br />6~
<br />
<br />CHAPTER III-CONCRETE BATCHING AND MIXING
<br />
<br />GENERAL IKFOR1JATION
<br />
<br />31 Requirements...........,.,.............................
<br />32 lon,iderations,..". __........".... __" __ __ __ __.. __ __..
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<br />67
<br />an
<br />
<br />LOW.LEVEL MIXING PLAKT
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<br />33 Location and construction................. ..' '" .......
<br />34 General dp,cdption __ . __ __ __ . __ . __ . __ __ . .. . , .. .. . __
<br />35 Aggregate supply. . . . . . . . . . . . . , . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
<br />36 }.Iaterial storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ........,..
<br />37 Batching...............,....,...,...................... . . . . . . . . .
<br />38 Automatic and remote control. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
<br />39 Mixing .....................,........... . . . . . . . . . . . . .
<br />40 Graphic recorders. . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . .
<br />41 Consistency meters...............,.............
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<br />70
<br />.72
<br />76
<br />77
<br />77
<br />81
<br />86
<br />88
<br />n2
<br />
<br />HIGH.LEVEL MIXING PLANT
<br />
<br />42 Location and construction............................................ 1Hi
<br />43 General description.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , 99
<br />44 Material supply a.nd storage, . . , . . . , . . . . . . . . . . . . . . . .. . . . . . . . . .. 100
<br />45 A~t?matic batching and remote control.. . .. .. . ... .................... 101
<br />46 MlXlng ..........................................................., 104
<br />47 Gra.phic recorders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .' 105
<br />48 Consist~ncy meters.............................. .. . , .' .. . 106
<br />
<br />CHAPTER IV-CONCRETE HANDLING EQUIPMENT
<br />
<br />49 Introduction.....,..................,.................
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<br />107
<br />
<br />TRANSPORTATION
<br />
<br />50 Concrew containers................................,....,...,........ 108
<br />51 Trucks and railroads...., ....... ............... .. ...........,........ llO
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<br />52 Ca.bleways ........,.........................,....................., 114
<br />53 Cranes and derricks, . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . , . , . . . , . . . . . . .. llS
<br />54 Miscellaneous m~thod!:l............................................... 1lf)
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