Other formats

    Adobe Portable Document Format file (facsimile images)   TEI XML file   ePub eBook file  

Connect

    mail icontwitter iconBlogspot iconrss icon

The Pamphlet Collection of Sir Robert Stout: Volume 50

Lecture I. — On Building Materials

Lecture I.

On Building Materials.

Sun-dried bricks.—Sod walling.—Cob walls.—Clay chimneys.—Bricks: Composition of brick earth—Mixtures often dsirable—Alumina, sand, fluxes—Refractory clays—Fusible earths—Bricks of two classes, viz.: baked and burnt—Colour—Red, white, and yellow bricks—white bricks a desideratum.—Principal operations: Tempering, moulding, burning.—Hollow beds—Mortar joints, timber bond objectionable.—Building stone.—Masonry of three classes: Ashlar, block-in-course, and rubble.—Use of mortar in bedding.—Masonry without mortar.—Moss used for bedding.—Concrete: Artificial stone—Beton—Lime concrete—Pozzuolana—Caissons lined with waterproof cloth—Differences in concrete—Round pebbles—More sand—Broken pebbles—Broken stone—Ramming essential—Proportion of stone to mortar—Cement—Specification for—Proportion of cement required—Concrete vaulting—Concrete dam at Stony Creek—Extended use of concrete—Tensile strength.—Timber: Hard and soft woods—structure of timber—Strength of beams—Mechanical effect of a given load under varying circumstances—Practical application—Cross-strain—Formula for sectional strength—Experiments should be made on whole timbers—Round versus square piles—Trussed beams.—Iron: Cast iron, wrought iron, steel—Table of comparative compressive and tensile strength—Flanged beams—Formulaæ for strength of cast iron girders—Proportions of flanges reversed in wrought iron girders—Formulæ for strength of wrought iron girders—Difference between wrought iron and steel—Continuous girders not a suitable construction in cast iron—Allowance to be made for contraction and expansion.