Masonry Magazine May 1964 Page. 16
Lime
(Continued from page 13)
irregularities to provide a keying action which produces a more intimate bond.
Some engineers have the erroneous impression that the stronger a mortar is in compressive strength, the better it is. Actually, as mortars are made stronger (by increasing the cement content), they become more rigid and brittle and generally unable to accommodate to movements and stresses caused by settlement, strong winds, thermal changes, wetting and drying, etc. High lime mortars possess some resilience and tend to accommodate movement without undue cracking.
Finally, lime offers considerable economy, both in initial construction and in low maintenance. Because of these many advantages, lime remains an essential ingredient in mortar, and enough should be used for best results. As a general rule, the National Lime Association recommends a 1:1:6 cement-lime-sand mortar (by volume) for below grade construction, or where extremely heavy loads or cold weather conditions exist. For all other applications, a 1:2:9 cement-lime-sand mix is recommended.
Raise Up To 1000 lbs. 160 ft. In 60 Seconds
Wheelbarrows full of mortar or concrete, pallets of masonry block or bricks, tools and many other building materials can be raised quickly and safely on the new Aeroil 1000 lb. Monorail Hoist.
Can be broken down into three parts for easy hoisting to the work area and ease of assembly.
Load is raised, pulled in and deposited on the deck by the hoist.
Write for Bulletin HO-1 for detailed information and prices.
AEROIL PRODUCTS COMPANY
69 Wesley St.,
South Hackensack N.J.
See You In Cleveland On February 13-16
Have You Heard About The All New - All Metal SCR Corner Pole For Veneer Or Solid Bearing Masonry
Each pole is complete in itself and can be used at an outside corner, inside corner, or intermediate position by merely adjusting the fittings. Needs no added parts which become mislaid or lost.
Sturdy rugged practically indestructible galvanized steel pole with cost aluminum/magnesium fittings adjustable brick & inch-modular & inch rule for course changing of sills and heads fast and easy to erect and align 2 min, veneer-5-6 min, solid masonry-one mon top and bottom fittings calibrated to overhang or indent masonry-6 timings can be pre.
At a realistic price you can afford and recover in a few weeks by the additional work accomplished.
A set of 4 poles 159.00
A full set of 6 poles 229.50
Complete with all fittings and components choice territories available to dealers distributors your inquiry is invited contractors: Write for free booklet on new developments in the "SCR Masonry Process", brochure and further information.
Developed by the Structural Clay Products Research Foundation of Geneva, Ill, after nine years of corner pole experience.
MASONRY SPECIALTY CO.
172 WESTBROOK RD. NEW KENSINGTON, PA. PH. 335-9831
MASONRY
May, 196