Laserfiche WebLink
<br />~ <br />co <br />Ln <br />C'~ <br /> <br />~ <br /> <br />xviii <br /> <br />CONTENTS <br /> <br />&rtion <br />322 Soundness .........,..,.. <br />323 Normal consistency <br />324 Water-cement ratio~ <br />J2.f Fineness of cements determined by different methods <br />326 Screen analysis of cements a poor index of fineness <br />327 Maximum, minimum, and average values of specinc surface <br />328 Surface-area distribution, experimental results <br />329 Linear relation between D/S and S <br />330 Summary <br /> <br />CHEMICAL ANALYSIS AND COMPOUND COMPOSITION <br /> <br />331 <br />lJ2 <br />333 <br />334 <br />33' <br />336 <br />337 <br /> <br />Oxide analysis <br />Average oxide analyses for various groups of cement <br />Formation of compounds in the kiln <br />Nomographs for computing chemical compounds from oxides <br />Compound composition of the various cements <br />Percentages of compounds contained in various groups of cements <br />Summary.......... <br /> <br />COMPRESSIVE STRENGTH TESTS OF MOR TARS AND CONCRETES <br />I. Scope of Tests <br />Test specimens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Grading of aggregates, water-cement ratio, and mix proportions <br />Standard rate of loading; capping of cylinders <br />Purpose of tests ... . . <br />Plotting of results <br />2. Effect of Size of Test Specimen on Compressive Strength <br />Individual and average values . . . . . . . . . . . . . . . . . . . . . . <br />Results obtained <br />J. Average Time-Strength Relations for Various Groups 0/ Cements <br />34,. Data presented <br />346 Average experimental results <br />4. Comparison of Compressive Strength for StanJard- and Mass-Cured Cements <br />Experimental results <br />Acceleration of strength development due to mass curing <br />Di1ferences in strength development for various groups of cements <br />L Effect 0/ Fineness 0/ Grinding on Compressive Strength <br />Effect of oneness on strength of laboratory cements <br />Advantages of fine grinding for low-heat cements <br />6. Effed 0/ Initial Temperature on the Properties 0/ Mass-Cured Concrete <br />352 General <br />353 Discussion of results <br />354 Comparison of fog-cured and mass-cured specimens <br />35,. Effect of mixing temperature on slump <br />7. Effed 0/ Waler-Cement Ratio on Compressh1e Strength for Two Types <br />356 Purpose of tests ......... <br />357 Presentation of data <br />358 Discussion of results <br /> <br />ll8 <br />ll9 <br />340 <br />341 <br />342 <br /> <br />343 <br />344 <br /> <br />347 <br />348 <br />349 <br /> <br />3>0 <br />3>1 <br /> <br />34' <br />346 <br />348 <br />348 <br />0/ Cement <br />349 <br />349 <br />3>0 <br /> <br />3>9 <br />l60 <br />361 <br /> <br />B. Effect 0/ Cement Blending <br />Need for data on effect of blending <br />Data presented <br />Results <br /> <br />on Compressive Strength <br /> <br />P#8' <br />124 <br />321 <br />126 <br />126 <br />126 <br />126 <br />128 <br />329 <br />129 <br />129 <br />332 <br />312 <br />333 <br />ll3 <br />336 <br />336 <br />338 <br />ll8 <br />ll8 <br />339 . I <br />339 <br />ll9 <br />340 <br />340 <br />340 <br />341 <br />341 <br />341 <br />34' <br />34' <br /> <br />3>1 <br />3>2 <br />JJ2 <br />