... A number of water repellents are added to masonry mixes and masonry units. To be classified as a water-repellent mortar admixture, ASTM C 1384 Specification for Admixtures for Masonry Mortars, requires that the 24-h rate of water absorption needs to be reduced by at least 50 % when compared...

... concrete blocks, concrete blocks, stuccos, and mortars. The use of CCPs positively impacts the environment. Specifiers, contractors, and industry need to recognize that environmental stewardship today affects our children tomorrow. The features and benefits recognized in pozzolanic mortars reach beyond...

... with a pozzolanic mixture of thermally treated clay and ash from agricultural wastes. The study assesses the accelerating effect of sodium sulfate in strength development of building materials. Pozzolana lime mortars building materials ashes agriculture waste Bernhard Middendorf, l' 3 Jana Mickley,z...

... RILEM TC Characterization of old mortars with respect to their repair was established in the fall of 1996. Its objectives are for the establishment of general performance criteria and recommendations dealing with mortars for restoring and repairing existing masonry. The deliverables...

... work is being planned, original pointing and construction mortars be tested to determine their original constituent materials, both for the purpose of performance specification and for the purpose of matching the original appearance of the mortars. Even without the regulatory impetus, it is wise...

... Cement-based products such as grouts and mortars are being modified with water-based emulsifiable polymers to design products with some of the properties of traditional organic adhesives without sacrificing the properties imparted by the cement. Improved adhesion, strength and flexibility...

... granulated slag, and lesser amounts of ground limestone or silica fume, were tested for flow, strength development, and drying shrinkage. Three CPSD blended cements (two with Class F fly ash and one with slag, all with ground limestone) were selected for mortar and concrete tests along with two normally...

... The behavior of slag cements combining substantial amounts of separately ground granulated blast-furnace slag is compared with that of portland cements. The effects on mortars and pastes of exposure to elevated temperatures during early-stage hydration and at later ages has been determined...

... The investigations of carbonic acid attack on cement mortar revealed the problems in performing and evaluating tests on corroded specimens for the determination of mortar durability. The investigations carried out to study the influence of the blast-furnace slag content in cement...