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Properties of litharge and glycerine mortarsMcKinnon, Bain Laughlin 10 May 1933 (has links)
Graduation date: 1933
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Characterization of selected beylikler period mortars and processing of new intervention mortars for restoration purposes/Budak Meral. Akkurt, Sedat,thesis advisor. January 2005 (has links) (PDF)
Thesis (Master)--İzmir Institute of Technology, İzmir,2005 / Keywords: Lime, mortar, conservation, restoration, pozzolan, intervention mortar. Includes bibliographical references (leaves.77-80)
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The effects of temperature upon cement mortarCowen, Herman C. Florreich, Phillip. January 1895 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1895. / The entire thesis text is included in file. Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed January 29, 2009)
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LOW-COST RAPID-RESPONSE EMBEDDED ANTENNA DESIGN FOR US ARMY 60MM MORTARSKatulka, G., Hall, R., Peregino, P., Muller, P., Hundley, N., McGee, R. 10 1900 (has links)
ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada / The Defense Advanced Research Projects Agency (DARPA) and the US Army are engaged in a
high-risk/high-payoff project for the development of precision-guided 60mm mortars for the
benefit of the optically designated attack munition (ODAM). This paper describes the antenna
design and performance characteristics required for a telemetry-based onboard diagnostic
system. Efforts executed at the U.S. Army Research Laboratory, Aberdeen Proving Ground, MD
met our primary objective to demonstrate rapid response low-cost capability for body-mounted
antennas compatible with commercially-available telemetry products. This presentation reviews
the theoretical design and antenna radiation pattern characteristics, tuning process, and returned
in-flight signal strength along the trajectory. Experimental results compared favorably with
theoretical link analyses. Lessons learned, ongoing applications, and future improvements are
also presented.
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Study on the bamboo-charcoal materials properties of applying to cement mortar are improvedYu, Meng-syun 23 July 2007 (has links)
This research fully use the absorbability extremely good characteristic of bamboo charcoal, probe into the feasibility research that the bamboo charcoal will be applied to the ocean engineering. The bamboo charcoal with replace different thin aggregates weight¡]replace 0%¡B3%¡B5% and 7% of thin aggregates weight¡^add it into the cement mortar, and then to plan three kinds of cement mortar ratio¡]w/c=0.40¡B0.48 and 0.55¡^,and test of every relevant tests. Include strength and permeability relevant tests, probe into bamboo charcoal is it influence engineering character of the cement mortar to add.
In order to assess the suitability that the bamboo charcoal applies to the cement mortar, test this material replace part thin aggregates compression strength and permeability coefficient of the influence, and the bamboo charcoal to have absorbability the chlorine ion and sulfide harmful chemical of the characteristic to the bamboo charcoal. Test to resist chloride ion and sulfide tests, to discussion by the result of the test. In order to get a group of best cement mortar ratio of replace the bamboo charcoal, and change tiny structure of the cement mortar with Scanning Electron Microscope¡]SEM¡^. By prove feasibility to the ocean engineering the bamboo charcoal adds into the cement mortar.
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Silica fume concrete in hot and temperate environmentsAl-Eesa, Azmi Sami Said January 1990 (has links)
his investigation deals with the influence of hot and temperate curing environments on the hardened properties of concrete and mortar mixes. Condensed silica fume was blended with OPC as a potential alternative cementitious material to plain OPC for use in the hot Iraqi climate, in an attempt to find a cement combination that would overcome some of the durability problems experienced when using a plain OPC concrete in such an environment. Throughout the investigation two curing environments were used: the first simulating the UK temperate climate and the second simulating the hot Iraqi climate. Temperature and humidity were varied to simulate day and night time. The first stage of the experimental study was the development of a mix design method capable of producing an OPC-CSF cement concrete of a medium workability and a specific 28-days compressive strength ranging between 25 to 55 MPa, both with and without superplasticizer. Three grades of concrete strength were chosen (25,40 and 55 MPa) and the effect of four cement replacement levels (5,10,15 and 20%) of silica fume on concrete compressive strength was assessed. Test results showed that CSF was relatively more effective in lean mixes than in rich ones. Compressive strength of CSF concrete increased with increasing CSF percentages for both normal and superplasticized mixes up to an optimum levels of 10-15% and 15-20%, respectively. The amount of OPC (kg/m`3) necessary to bring a change in compressive strength of 1MPa was also determined and the theoritical blend proportions of OPC-CSF necessary to produce 28-day compressive strength equivalent to the plain OPC mixes were determined from the produced data above. The theoretical blend proportions were examined experimentally and the data were used to establish the relationship between strength and water/cementitious ratio for the blend mixes with and, without superplasticizer. Results showed that this basic relationship had changed quantitatively but not qualitatively when CSF was used. A cost study using current OPC and CSF material costs -was performed in an attempt to determine'the- most economic blend proportions. A total of eleven different concrete -mixes were selected to study the effect of curing environment (hot and temperate), initial curing time (0,1,3 and`-7 days) and curing method (water and polythene sheeting) on the compressive strength, permeability and absorption properties of the CSF concretes. Tests were carried out at 3,7, '14, 28,56,90 and 180 days of age. In addition five different mortar, mixes were used to examine the effect of curing environment (temperate and hot) an the *permeability, pore size distribution and durability to magnesium sulphate attack. Test results showed that hot Iraqi curing environment was favourable to the early-age strength, absorption and permeability of plain OPC mixes. However, - the later-age properties were significantly lower than those obtained for concretes cured in a temperate UK environment. For plain OPC mixes a critical curing period of 3 days was found under both temperate and hot environment. For the CSF blend mixes critical curing periods for the temperate and hot environment were found to be 3 and 1 day respectively. Results also reveal the importance of curing specimens immediately after casting for one day. Research work has also confirmed the superiority of water curing over polythene sheeting in a temperate environment for the rich plain OPC and CSF mixes. However, there was no significant difference between water and polythene for lean mixes. The reduction in , permeability and absorption properties of CSF mixes cured in a both temperate and hot environments is thought to be due to the changes in the pore structure brought about by the use of silica fume. Combining CSF with OPC was found to increase the percentages and volume of fine pores at the expense-of coarse pores. This effect may be described as a "refining" effect. Finally, the performance of CSF mortar mixes cured in a temperate and hot environment and their resistance to magnesium sulphate attack was significantly better than the plain OPC ones.
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Limes, mortars, and cementsEmerson, Cyrus H.. January 1876 (has links) (PDF)
Thesis--University of Missouri, School of Mines and Metallurgy, 1876. / The entire thesis text is included in file. Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed August 19, 2008)
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Limes, mortars, and cementsAlexander, Curtis. January 1884 (has links) (PDF)
Thesis--University of Missouri, School of Mines and Metallurgy, 1884. / The entire thesis text is included in file. Holograph [Handwritten in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed October 27, 2008)
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Characterization of Horasan plasters from some Ottoman baths in İzmir/Elif Uğurlu;thesis advisor Hasan Böke.Uğurlu, Elif. Böke, Hasan January 2005 (has links) (PDF)
Thesis (Master)--İzmir Institute Of Technology, İzmir, 2005. / Keywords: Ottoman Bath, Horasan Plaster, Brick, Lime, Pozzolan. Includes bibliographical references (leaves. 89-96).
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Investigation of lime mortar characteristics for the conservation of the ottoman baths in Seferihisar-Urla region/Çizer, Özlem İpekoğlu,Başak January 2004 (has links) (PDF)
Thesis (Master)--İzmir Institute of Technology,İzmir, 2004. / Includes bibliographical references (leaves. 110-117).
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