CHAPTER II.--THEORY AND PRACTICE OF PROPORTIONING CONCRETE. 25

~Voids:~ Voids in Sand; Effect of Mixture--Effect of Size of Grains--Voids

in Broken Stone and Gravel; Effect of Method of Loading; Test

Determinations; Specific Gravity; Effect of Hauling--Theory of the

Quantity of Cement in Mortar; Tables of Quantities in Mortar--Tables of

Quantities in Concrete--Percentage of Water in Concrete--Methods of

Measuring and Weighing; Automatic Measuring Devices.

Concrete Construction: Methods and Costs · 第 2 / 34 章