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<br />o <br />oc <br />.n <br />C\I <br /> <br />c.. <br /> <br />CONTENTS <br /> <br />DETAILED CONCLUSIONS <br /> <br />Sutl()1f, <br />51 General <br />58 Heat of hydration <br />59 Strength <br />60 Strength~heat ratio <br />61 Durability <br />62 Resistance to sodium sulfate <br />63 Volume change <br />64 Water requirement for fixed consistency <br />65 Fineness of cements <br />66 Water absorption and grindability <br /> <br />ACKNOWLEDGMENTS <br /> <br />67 Appreciation of services <br />68 Laboratory staff <br /> <br />CHAPTER IV-APPARATUS, MATERIALS, AND TEST <br />METHODS, INVESTIGATIONS AT BERKELEY <br /> <br />GENERAL DATA <br /> <br />69 Scope of work <br />70 General description of cements .. <br />71 Commercial cements <br />72 Laboratory cements <br /> <br />PRODUCTION OF LABORATORY CEMENTS <br /> <br />73 Steps in manufacture <br />74 Raw materials <br />7S Mix calculations <br />76 Burning <br />77 Heat treatment <br />78 Grinding, nrst series <br />79 Grinding, second series <br /> <br />ANALYSIS OF CEMENT AND CLINKER <br /> <br />80 <br />81 <br />" <br />8l <br />84 <br />8l <br />86 <br />87 <br />88 <br />89 <br />90 <br /> <br />General <br />Determination of 5i02 <br />Determination of R20S <br />Deurminadon of CaD <br />Determination of MgO <br />Determination of Fe20s <br />Determination of SOg <br />Insoluble residue and loss on ignition <br />Determination of free CaO <br />Calculation of potential composition <br />Variations in normal methods <br /> <br />DETERMINATIONS OF FINENESS <br /> <br />91 Methods of measUrement <br />92 ZOO-mesh standard screen <br /> <br />Xl <br /> <br />P,g, <br />43 <br />43 <br />., <br />46 <br />46 <br />46 <br />46 <br />47 <br />48 <br />48 <br /> <br />10 <br />10 <br /> <br />II <br />II <br />12 <br />12 <br /> <br />14 <br />H <br />56 <br />56 <br />" <br />19 <br />60 <br /> <br />61 <br />61 <br />62 <br />63 <br />63 <br />63 <br />64 <br />64 <br />64 <br />63 <br />63 <br /> <br />67 <br />67 <br />