... As part of accepted practice in sustainable concrete production, a high percentage of cement is commonly replaced with waste materials such as fly ash. This practice has only recently been investigated for use with grout in concrete masonry unit (CMU) construction. An initial comprehensive...

... The structural performance of masonry is in part influenced by the relative and absolute compressive strength of the units, mortar, and grout. However, during the period immediately following masonry construction, the compressive strength of a given assemblage is often uncertain...

... The hydraulic backfilling of abandoned room and pillar coal mines with ash-based grout holds promise as an environmentally beneficial method of ash disposal, capable of preventing acid mine drainage and subsidence. For this scheme to be economically viable, the grout must be sufficiently...

..., but also trace to low levels of Pb, Cr, 235 U, and 99 Tc. In situ solidification was studied in three, 3.1m diameter by 4.6 m deep columns. During mixing, a cement-based grout was injected and any emissions from the mixed region were captured in a shroud and treated by filtration and carbon adsorption...

... Currently, ASTM C 1019 “Standard Method of Sampling and Testing Grout” governs the compression testing of grout used in masonry construction. This test method utilizes masonry units from the project as the mold to cast the grout specimens for compressive strength testing, thereby accounting...

... Cementitious grouts and soil cements were evaluated for use as subsurface barriers to contain buried stabilized hazardous wastes. The environmnent of focus was arid, although the results may also be relevant to other environments. Optimization of the physical and mechanical properties of grouts...

... cement grout polyethylene Dewey A. Burbank, Jr. l and Kent M. Weingardt I MIXED WASTE SOLIDIFICATION TESTING ON POLYMER AND CEMENT-BASED WASTE FORMS IN SUPPORT OF HANFORD'S WRAP 2A FACILITY REFERENCE: Burbank, D. A., Jr. and Weingardt, K. M., "Mixed Waste Solidification Testing on Polymer and Cement...

...) Equipment. The records of grout quantity, based on field tests conducted by the highway agencies of several states during undersealing projects, were the prime source to verify the presence of voids. All methods required extensive manual data analysis and output interpretation. Deflection methods...

... bentonite hydraulic conductivity grout Alan J. Lutenegger ~ and Don J. DeGroot 2 HYDRAULIC CONDUCTIVITY OF BOREHOLE SEALANTS REFF/~CE: Lutenegger, A. J., and DeGroot, D. J., "Hydraulic Conductivity of Borehole Sealants," Hydraulic Conductivity and Wast9 Contaminant Transport in S0il, ASTM STy 1142...

... 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...

... and distribution coefficients of > 10 could be attained for all eight and > 100 for some compounds. stabilization solidification VOCs organic immobilization cement grout waste form trichloroethene acetone methyl ethyl ketone 1,2-dichloroethene chloroform benzene chlorobenzene...

... Data have been presented which show that electrical resistance of freshly prepared cement-based grouts is linear with respect to grout-mix ratio over a wide range. The data serve to establish the proof of principle for application to the real time measurement of mix ratio utilizing a meter based...

... This paper presents the results of a research project on the properties of masonry grout and grouted concrete masonry. Seventy-two grout specimens were tested to investigate the effect of varying the proportions of grout (cement to aggregate ratio) on the physical properties of grout and grouted...

... The results of an experimental program designed to evaluate the influence of constituent proportions on the stress-strain relationship of Portland cement-lime mortar and grout are reported. Grout specimens consisting of 76 millimeter by 152 millimeter cylinders and mortar specimens of 50...

... Grouts are becoming increasingly important in producing barriers to contaminated groundwater flow at hazardous waste sites. Grouted barriers can be used at depths and under conditions where slurry trenches are impractical. To employ grouts to advantage at waste sites it is necessary to select...

... Grout for reinforced masonry is reviewed through national product specifications and national masonry standards and codes. The role of grout and the factors affecting grout performance lead into a review of ASTM Specification for Mortar and Grout for Reinforced Masonry (C 476-71). A critical...

... vessels, in several corrosive environments, and to determine the protection obtained by coating the steel with two commercial petroleumbase greases or with portland cement grout. In addition, the few reported incidents of prestressing steel failures in concrete pressure vessels used for containment...

... Low-slump, high-quality concrete is used in Iowa for partial-depth patching and resurfacing of bridge decks. All unsound concrete is removed, as well as a minimum of ¼ in. (0.054 m) of the remaining sound concrete surface. Sand cement grout is scrubbed onto dry, prepared deck immediately prior...