 | California State Mining Bureau - 1921 - 586 páginas
...Jurassic age quarried for building purposes on Portland Isle, Dorsetshire, England. Portland cement is the product obtained by finely pulverizing clinker...produced by calcining to incipient fusion an intimate mixture of properly proportioned argillaceous and calcareous substances, with only such additions subsequent... | |
 | American Society for Testing Materials - 1920 - 868 páginas
...etc., which becomes a solid mass when the cementitious materials have hardened. 9. Portland Cement. — The product obtained by finely pulverizing clinker...excepting water and calcined or uncalcined gypsum. Definition taken from Standard Specifications and Tests for Portland Cement (Serial Designation : C... | |
 | 1919 - 294 páginas
...marked increase in demand. PORTLAND CEMENT. By ERNEST F. BURCHARD. RAW MATERIALS. Portland cement, a product obtained by finely pulverizing clinker produced by calcining to incipient fusion a properly proportioned mixture of calcareous and argillaceous materials, is now manufactured in 28... | |
 | United States. Bureau of Mines - 1919 - 1164 páginas
...CEMENT. DEFINITION. 1. Portland cement is the product obtained by finely pulverizing clinker pro<lu»d by calcining to incipient fusion an intimate and properly...subsequent to calcination excepting water and calcined gypsum. CHEMICAL PROPERTIES. Chemical limits. — 2. The following- limits shall not be exceeded :... | |
 | 1913 - 326 páginas
...GOVERNMENT SPEClFICATION FOR PORTLAND CEMENT.• Specification. Definition. — 1. The cement shall be the product obtained by finely pulverizing clinker...produced by calcining to incipient fusion an intimate mixture of properly proportioned argillaceous and calcareous substances, with only such additions susbequent... | |
 | International Railway Congress Association - 1923 - 1262 páginas
...horizontal dimension. Plain concrete. — Concrete without metal reinforcement. Portland cement. — The product obtained by finely pulverizing clinker...excepting water and calcined or uncalcined gypsum. Positive reinforcement. — Reinforcement so placed as to take stress due to positive bending moment.... | |
 | Geological Survey of Georgia - 1912 - 386 páginas
...GOVERNMENT SPECIFICATION FOE PORTLAND CEMENT. 1 SPECIFICATION. Definition.—1. The cement shall be the product obtained by finely pulverizing clinker...produced by calcining to incipient fusion an intimate mixture of properly proportioned argillaceous and calcareous substances, with only such additions subsequent... | |
 | 1913 - 326 páginas
...GOVERNMENT SPECIFICATION FOR PORTLAND CEMENT.* Specification. Definition. — 1. The cement shall be the product obtained by finely pulverizing clinker...produced by calcining to incipient fusion an intimate mixture of properly proportioned argillaceous and calcareous substances, with only such additions susbequent... | |
 | Charles Evan Fowler - 1914 - 954 páginas
...UNITED STATES GOVERNMENT SPECIFICATIONS 59C1 FOR PORTLAND CEMENT* DEFINITION (1) The cement shall be the product obtained by finely pulverizing clinker...produced by calcining to incipient fusion an intimate mixture of properly proportioned argillaceous and calcareous substances, with only such additions subsequent... | |
 | Frederick W. Taylor M.E., Sc.D Samford E. Thompson, S. - 1916 - 952 páginas
...SPECIFICATIONS AND METHODS OF TESTS FOR PORTLAND CEMENT SPECIFICATIONS Definition. i. Portland cement is the product obtained by finely pulverizing clinker...excepting water and calcined or uncalcined gypsum. Chemical Limits. I. CHEMICAL PROPERTIES . The following limits shall not be exceeded: Loss on ignition,... | |
| |
Portland cement is the product obtained by finely pulverizing clinker produced by calcining to incipient fusion an intimate and properly proportioned mixture of argillaceous and calcareous materials, with no additions subsequent to calcination excepting... 
