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Showing 1 to 20 of 39 for “"Cement Mortar"”.
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Drying shrinkage of Portland cement mortar
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1959.
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Moisture permeability of mature concrete, cement mortar and cement paste
… tests were performed on specimens of concrete, cement mortar and cement paste with the bottom side in water or in moist air and the upper side in a relative humidity of 33 %. The distribution of the relative humidity within the specimen was measured, at stationary conditions, as well as the …
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The Moisture Transport Properties of Cement Mortar under Salt Spray Deposition
… and crystal distribution of sodium chloride in cement mortar. The salt crystal distribution and chloride migration patterns of cement mortars with different water-cement ratios and surface evaporation conditions were determined after 120 days of semi-immersion in a 5 wt% NaCl solution. Both the …
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Microstructure and Its Relationship to Fracture in Portland Cement Mortar and Concrete
… crack propagation and mechanical properties of mortar and concrete. The crack deflection and branching are measured using several microscopy techniques along with image analysis of crack profiles intruded by a low melting-point alloy. The toughness measured by mechanical testing, the fracture …
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The Properties of an Expansive Cement Mortar Reinforced With Random Wire Fibers
Made available in DSpace on 2014-12-08T23:57:23Z (GMT). No. of bitstreams: 1 7013415.pdf: 6530056 bytes, checksum: 790e414cdaae79405b35b8f171ce988c (MD5) Previous issue date: 1969
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The effect of freezing on hydraulic-cement mortar different hours after mixing
… was to find out the effect of freezing on mortar at different hours after mixing. This was a continuation of the work done by G.H. Harris in 1945. It was hoped that by using different materials, steel molds, and by molding, freezing and testing the specimens as accurately as was possible to …
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Toward improving carbon nanotube utilization in Portland cement mortar using novel processing techniques
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2011-08-26T15:25:47Z Item is restricted until 2013-08-26T15:25:28Z
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Influence of lightweight aggregate and calcium sulfoaluminate cement on deformation of ordinary Portland cement mortar and concrete
… (LWA) and usage of calcium sulfoaluminate (CSA) cement are two common methods applied in shrinkage mitigation. Pre-soaked LWA supplies additional moisture to cement paste during hydration, thereby compensating for the water consumption that occurs during hydration and drying. CSA cement induces …
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The relationship between the compressive strength of cement mortar and the chemical composition and fineness of cement
… chemical composition and fineness of Portland cement. Tests were performed on cement paste and mortar to determine which mixture would yield the most accurate, reproducible results. Paste was found to have a high degree of variation due to its mechanism of failure. Mortar, on the other hand, …
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The relationship between the compressive strength of cement mortar and the chemical composition and fineness of cement
… chemical composition and fineness of Portland cement. Tests were performed on cement paste and mortar to determine which mixture would yield the most accurate, reproducible results. Paste was found to have a high degree of variation due to its mechanism of failure. Mortar, on the other hand, …
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Water Quality, Aesthetic, and Corrosion Inhibitor Implications of Newly Installed Cement Mortar Lining Used to Rehabilitate Drinking Water Pipelines
For decades, cement mortar relining has been used successfully to extend the life of drinking water pipelines, although, few quantitative data exist on the short-term water quality impacts of this process. This study investigated mortar lining impacts on disinfectant by-product formation, …
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Thermal Conductivity of Fiber-Reinforced Lightweight Cement Composites
… (ETC) of fiber-reinforced lightweight cement composites. At various stages in the development of the model, the results are compared to experimental values and the model is calibrated when appropriate. Additionally at each stage the proposed model and its results are compared to …
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Feasibility and assessment of using recycled rubber for infrastructure applications
… crumb rubber were used as a fine aggregate replacement in concrete masonry units (CMUs) where the rubberized units showed a lower unit weight, higher ultimate strain, and better durability. In addition, the thermal conductivity of rubberized masonry units decreased with increasing the rubber …
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An investigation of ferro-cement
In this study the properties of ferro-cement are investigated. Ferro-cement is a kind of reinforced concrete differing from normal reinforced concrete in that cement mortar and fine steel reinforcement are used rather than aggregate concrete and bar reinforcement. Concrete consistency and three …
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Long-Term Performance of Polymeric Materials in Civil Infrastructure
… joint sealants were sandwiched between Portland cement mortar specimens and tested using a specially designed fixture to imitate the fatigue performance of the joint under simulated field conditions. The results of the study indicated that the fatigue life of the two silicone sealants were …
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Evaluation of pavement joint sealants: a new testing technique
… sandwiched between two-2 x 2 x 2 in. portland cement mortar cubes. The normal and shear deflections were applied simultaneously at a specific ratio controlled by the developed fixture. The new testing method simulates field conditions, where shear deflection is caused by vehicle loads while …
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Mechanical Properties of Polymer Modified Mortar
The mechanical properties of the polymer-modified mortar are markedly improved over conventional cement mortar. We utilized recycled ABS in powder form and a polymer latex emulsion, polymer percentage ranges from 0 to 25 percent by polymer/cement ratio were investigated. The mechanical properties …
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