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<br />Cf.) <br />(I) <br />If) <br />N <br /> <br />c <br /> <br />CONTENTS <br /> <br />StctiOfl <br /> <br />)62 <br />36J <br />)64 <br /> <br />9. Hoover Dam Cement Acceptance <br />Type and number of specimens <br />Summary of acceptance tests <br />Discussion of results <br /> <br />Terts for Compressive Strength <br /> <br />10. Summary <br />3M List of principal findings relative to compressive strength. <br /> <br />TEMPERATURE RISE AND HEAT OF HYDRATION IN MASS CONCRETE <br />1. Scope of Tests <br /> <br />366 General <br />367 Tests performed <br /> <br />2. Temperature Rise in Ma.lS Concrete <br /> <br />'68 <br />)6' <br />370 <br />371 <br /> <br />Laboratory cements <br />Commercial cements <br />Temperature rise for the various groups of cements <br />Estimated values of heat of hydration at the ages of 3 months and I year <br />J. Heat of Hydration in Mass Concrete <br /> <br />J72 <br />J7J <br /> <br />Individual cements .......... <br />Heat of hydration fOf various groups of cements <br />4. Effect of Fineness on Temperature Rise and Heat of Hydration <br />Results of tests of several laboratory cements ........... <br />Average effect of increased fineness <br />50 Influenr;e of Compound Composition <br />Contribution factors ..... . . . . . . . . . . . . . . . . . . <br />Computed values of heat of hydration .................... <br />Agreement between experimental and computed values <br />6. Effed of Initial Temperature of Mass Curing on Heat of Hydration <br />General.. ...., ... .... <br />Data presented <br />Discussion of resules <br /> <br />374 <br />m <br /> <br />376 <br />)77 <br />378 <br /> <br />37' <br />380 <br />38l <br /> <br />7. Effect of Cement Blending on Heat of Hydration <br /> <br />J82 <br />J83 <br />J84 <br /> <br />General <br />Data presented <br />Discussion of results <br />g, Effect of <br /> <br />Water-Cement Ratio on Heat of Hydration <br /> <br />'" <br />J86 <br /> <br />General <br />Resules <br /> <br />9. Hoover Dam Cement Acceptance Tests for Heat of Hydration <br />387 Type and number of specimens . . . . . . . . . . . . . . . . .. <br />388 Results ....... .... ......... <br />389 Comparison of experimental and computed values ......... <br />10. Summary <br />390 List of principal conclusions relative to heat of hydration. <br /> <br />STRENGTH-HEAT RATIO <br /> <br />391 <br />J92 <br />393 <br />394 <br />'" <br /> <br />Significance of strength.heat ratio ..,......... <br />Purpose and scope of strength-heat ratio determinations <br />Comparison of strength-heat ratios for the various cements <br />Effect of initial temperature of mass curing ....... . . . . . <br />Effect of blending cements <br /> <br />XIX <br /> <br />P~gt <br /> <br />"3 <br />3H <br />3H <br /> <br />". <br /> <br />'" <br />"6 <br /> <br />"6 <br />358 <br />358 <br />359 <br /> <br />360 <br />360 <br /> <br />361 <br />36l <br /> <br />361 <br />362 <br />364 <br /> <br />366 <br />366 <br />366 <br /> <br />368 <br />370 <br />370 <br /> <br />370 <br />370 <br /> <br />371 <br />372 <br />372 <br /> <br />373 <br /> <br />374 <br />374 <br />374 <br />377 <br />37' <br />