Usability includes methods of measuring usability, such as needs analysis and the study of the principles behind an object's perceived efficiency or elegance.
Crowne Burial Vault. The burial vault is a waterproof container designed for earth burial. Made in America and constructed of high technology polymer, it is strong enough to withstand the weight of earth-moving and cemetery maintenance equipment.
1 FOUNDATION WATERPROOFING SEALANTS-CONTENTS: Basement waterproofing guide to choices of sealants, membranes, drainage systems, basement de-watering systems, sump pumps. 2  Description of various basement waterproofing paints, coatings, sealants. 3  How basement water may show up in a building attic.odium silicate is used in a water-based mixture to seal the basement walls and floors. The sodium silicate penetrates up to 4â into the substrate. After penetrating the sodium silicate reacts with the free lime content of the concrete or masonry.