. On the range of composition of Portland cement . Instructor in Charge APPROVED *1 HEAD OF DEPARTMENT OF 6JL kmc TABLE 0? CONTENTS Page I. Development of the Portland Cement Industry. 1XI* Constitution of Portland Cement. 2III. The Range of Composition. 9 IV. Calculation of the Cement Batch. 11 V. Present Field of Study. 14 VI. Materials and Preparation of Mixtures. 15 VII. Methods and Results of Tests. 20 VIII. Curves. 24 IX. Discussion of Results. 27 On the Range of Composition ofPortland Cement. DEVELOPMENT OF THE PORTLAND CEMENT INDUSTRY. The construction of the Eddystone Light House in E
. On the range of composition of Portland cement . Instructor in Charge APPROVED *1 HEAD OF DEPARTMENT OF 6JL kmc TABLE 0? CONTENTS Page I. Development of the Portland Cement Industry. 1XI* Constitution of Portland Cement. 2III. The Range of Composition. 9 IV. Calculation of the Cement Batch. 11 V. Present Field of Study. 14 VI. Materials and Preparation of Mixtures. 15 VII. Methods and Results of Tests. 20 VIII. Curves. 24 IX. Discussion of Results. 27 On the Range of Composition ofPortland Cement. DEVELOPMENT OF THE PORTLAND CEMENT INDUSTRY. The construction of the Eddystone Light House in Englandmarked a new era in the hydraulic cement industry. In 1756 whenJohn Smeaton, the engineer, attacked the problem of building thisstructure, he undertook a series of investigations the result ofwhich was the discovery of a cement material, which not onlyhardened better in air, but would also harden under water. Fromthe results of his work, the development of Portland cement maybe traced. It was not until 1824 that Portland cement came intoexi
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