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Topic: Mortar

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	Mortar (masonry) - Wikipedia, the free encyclopedia
		Mortar is a material used in masonry to fill the gaps between blocks in construction and bind the blocks together.
		The earliest known mortar was used by the ancient Egyptians and was made from gypsum.
		Cement mortar is created by mixing Pozzolana or Portland cement with sand and water and is harder than gypsum mortar.
	en.wikipedia.org /wiki/Mortar_(masonry) (679 words)

	Mortar (weapon) - Wikipedia, the free encyclopedia
		Typically a modern mortar consists of a tube into which is dropped a mortar shell (bomb) onto a firing pin resulting in the detonation of the propellant and the firing of the shell.
		Smaller mortars (up to 81 mm) are commonly used and transported by infantry based mortar sections as a substitute for, or in addition to, artillery.
		The largest mortars ever developed were the French "Monster Mortar" (developed by Henri-Joseph Paixhans in 1832), "Mallet's mortar" (developed by Woolwich Arsenal, London in 1857) and the "Little David" (developed in the USA for use in World War II).
	en.wikipedia.org /wiki/Mortar_(weapon) (1608 words)

	First World War.com - Weapons of War - Trench Mortars
		The chief advantage of the mortar was that it could be fired from the (relative) safety of the trench, avoiding exposure of the mortar crews to the enemy.
		The German mortars at the start of the war - translated into German as 'minenwerfer' (literally 'mine-thrower') had been designed in 1908-09 and, at a monster-size 25 cm, were rifled mortars mounted upon field carriages (each mortar of this size weighed approximately 95 kg).
		Mortars fired from this device had a maximum range of 1,500 yards and featured a built-in 25-second fuse, although this was soon changed to a percussion (impact) fuse.
	www.firstworldwar.com /weaponry/mortars.htm (1327 words)

	AllRefer.com - mortar, in building (Technology: Terms And Concepts) - Encyclopedia
		mortar, in building, mixture of lime or cement with sand and water, used as a bedding and adhesive between adjacent pieces of stone, brick, or other material in masonry construction.
		Lime mortar, a common variety, consists usually of one volume of well-slaked lime to three or four volumes of sand, thoroughly mixed with sufficient water to make a uniform paste easily handled on a trowel.
		Primitive mortars took various forms: in early Egypt, Nile mud was used as an adhesive; the Mesopotamians used bitumen (the slime mentioned in Genesis) or sometimes a mixture of clay, water, and chopped straw, to cement together their unbaked bricks; Greeks of the Mycenaean era probably employed a soft bituminous clay.
	reference.allrefer.com /encyclopedia/M/mortar1.html (443 words)

	Mortars (Site not responding. Last check: 2007-10-22)
		Mortars are light weight and man portable (so say the people not carrying the bastards!) In many militaries light infantry units have a mortar section (three mortars)in every company.
		Mortars work very well against dismounted infantry and light vehicles but against tanks and armored personnel carriers their use is limited.
		Automated mortar defense networks may be used to detect incoming mortar (and artillery) rounds, back track their trajectory, pinpoint the location of the enemy mortar(s) or cannon(s) and transmit a fire mission to automated mortar or artillery units.
	www.gulflink.osd.mil /11marines_ii/11marines_ii_refs/n60en056/mortars.htm (2768 words)

	Mortar (Site not responding. Last check: 2007-10-22)
		Mortar is a material used in masonry to fill the gaps between blocks in construction and bind the blocks together -- these can be stone, brick, breezeblocks[?] (cinder blocks) etc. It is a mixture of sand, a powdered adhesive and water that is applied as a paste and then dries hard.
		Cement mortars were first developed by the ancient Romans but did not become widespread in Europe until the 18th century, and did not fully replace lime mortar until about 1930.
		Mortars are often portable by infantry and can be used as a small-scale substitute for artillery.
	www.websign.sk /mo/Mortar.html (295 words)

	MAN-CART LIGHT AIRBORNE MORTARS (Site not responding. Last check: 2007-10-22)
		The 2 mortars sections jump their M224 60mm mortar components inside M1950 weapons cases or the new AirPack weapons case with simultaneous quick release of ruck and case for extreme low-level jumping.
		Before each mortar section jumps, a A-21 door bundle with a piece of truck bed liner plastic on the bottom is pushed out with a T-10 cargo parachute to match the descent profile of the jumpers.
		Mortar tubes should be carried "back-pack-style" using double-slings to keep them away from the legs for better foot mobility.
	www.geocities.com /Pentagon/Quarters/2116/mortars.htm (2487 words)

	Mortar Gunboats
		Mortars could not be placed directly on the bottom of landing craft since there was no way to keep the recoil from kicking mortars backward when the piece was fired.
		The advantage of the mortar boat plan was that it provided assault troops with heavy effective fire during that period in the landings when they were most vulnerable the time between the lifting of the naval bombardment and the establishment of supporting weapons on shore.
		Mine fields prevented the mortar boats from approaching closer than 1,500 yards from shore, but the effectiveness of the mortar barrage was such that 3 minutes after it had been lifted the troops, previously pinned down by enemy fire, encountered no opposition on advancing into the heavy woods.
	www.4point2.org /gunboats.htm (5554 words)

	Mortar Board History (Site not responding. Last check: 2007-10-22)
		Mortar Board was the first national organization honoring senior college women.
		The Mortar Board Foundation Fund was established by action of the 1955 Convention in response to inquiries for a means by which contributions might be made to advance the purposes of the organization.
		The first Mortar Board National Citation, instituted to honor women who made outstanding contributions to the status of women within the society's ideals, was presented to Congresswoman Martha W. Griffiths of Michigan.
	www.mortarboard.org /2history.html (1038 words)

	M224 60mm Light Mortar
		The baseplate allows the mortar to be fired 0800 mils left and 0800 mils right of the center of sector for a total sector coverage of 1600 mils.
		The mortar is then traversed until a proper sight picture is seen (using the aiming posts as the aiming point) and cross-level bubble is level.
		Standard A ammunition for the M2 and M19 mortars is standard B for the M224 mortar.
	www.inetres.com /gp/military/infantry/mortar/M224.html (1189 words)

	Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings
		Mortars for repointing should be softer or more permeable than the masonry units and no harder or more impermeable than the historic mortar to prevent damage to the masonry units.
		Historically, mortar acted as a bedding material--not unlike an expansion joint--rather than a "glue" for the masonry units, and moisture was able to migrate through the mortar joints rather than the masonry units.
		Mortar made with lime putty and sand, sometimes referred to as roughage or course stuff, should be measured by volume, and may require slightly different proportions from those used with hydrated lime.
	www.cr.nps.gov /hps/tps/briefs/brief02.htm (9375 words)

	What are Mortars, Rockets, and Grenades? Emily Yoffe
		Mortar shells, for example, are metal casings filled with an explosive charge.
		When the Israelis respond to mortars by "shelling" Palestinians, that generally means they are shooting large-caliber guns that are mounted on armored combat vehicles, of which tanks are a subset.
		Mortars were not designed to knock down walls, but were designed to hurl projectiles over walls and into the defended areas behind the walls.
	www.slate.com /id/1007642 (1253 words)

	Section 4065 Masonry Mortar
		Aggregate to be selected to match the color and texture of the original mortar aggregates as closely as possible while remaining in compliance with ASTM C144 grading and soundness requirements.
		D. Mortar Colors: Inorganic mineral oxides meeting the requirements of ASTM C797, at levels not to exceed 10% on cement weight, except for carbon fl, which may not exceed 2% on cement weight.
		Misting should be performed every hour or two on the first day, as required to maintain the mortar in a wet condition, and this may be reduced to every three or four hours on subsequent days.
	www.edisoncoatings.com /html/4065spec/4065spec.htm (1309 words)

	Mortar
		It is critical to appreciate mortar's properties and how the ingredients in mortar affect performance.
		Mortar materials were portland cement/lime, mortar cement and masonry cement.
		A control was established by combining a brick with a mid-range IRA, 15 gm/min/30 in2, and portland cement/lime mortars.
	www.maconline.org /tech/materials/mortar/mortar.html (316 words)

	M224 Mortar - Encyclopedia Glossary Meaning Explanation M224 Mortar (Site not responding. Last check: 2007-10-22)
		The M224 60 mm Lightweight Mortar is a smooth bore, muzzle-loading, high-angle-of-fire weapon used for close-in support of ground troops.
		The mount consists of a bipod and a base plate which is provided with screw type elevating and traversing mechanisms to elevate/traverse the mortar.
		While the M224 was designed to fire all types of the older ammunition, its primary rounds are of the newer, longer-range type.
	www.encyclopedia-glossary.com /en/M224-Mortar.html (346 words)

	Allrecipes \| Cook's Encyclopedia \| mortar and pestle
		As a pair, the mortar and pestle are used for grinding and pulverizing spices, herbs and other foods.
		The pestle is pressed against the mortar and rotated, grinding the ingredient between them until the desired consistency is obtained.
		The mortar and pestle are usually made from the same material, generally marble, hardwood, porcelain or stoneware.
	allrecipes.com /advice/ref/ency/terms/7519.asp (118 words)

	San Francisco advertising agency \| corporate branding \| Mortar: (Site not responding. Last check: 2007-10-22)
		Mortar San Francisco is an integrated advertising agency with expertise in corporate branding, identity and positioning.
		Mortar Advertising's work for Discovery Foods profiled in the San Francisco Chronicle.
		Mortar Advertising San Francisco is a proud member of the San Francisco American Marketing Association & Silicon Valley American Marketing Association.
	www.mortaradvertising.com (189 words)

	Mortar Board Forum (Site not responding. Last check: 2007-10-22)
		One chapter is also issuing a challenge to all Mortar Board chapters to raise funds for a new national scholarship fund established to help the children and spouses of the victims.
		The Mortar Board National Office recently received a letter from the Clintonville Beechwold Community Resources Center in appreciation of the 300 books donated at the 2001 National Conference as part of the “Reading is Leading” National Project.
		Mortar Board is pleased to have a new Chapter Development Coordinator, Michael J.
	www.mortarboard.org /6forum.html (1126 words)

	M121, 120mm Mortar
		The M121 Mortar is mounted in a M1064 Armored Personnel Carrier (M113 family of vehicles) and will replace, one for one, the 4.2" Mortar.
		The M-120 mortar, when fired, especially in the carrier configuration, produces a blast overpressure (impulse noise level) in excess of the allowable limits.
		mortar crew members and soldiers in the immediate firing area be informed about the risk of hearing loss from exposure to the noise generated by mortar firing,
	www.fas.org /man/dod-101/sys/land/m121.htm (461 words)

	Technorati Tag: mortar
		Mortar 3M fire barrier mortar used as mechanical and electrical penetration firestop.
		Mortar from Wacker Polymers Modification of cementitious mortars with Vinnapas® redispersible powders from Wacker.
		Mortar Products: Save at Become.com Become.com provides you with prices, research and information from across the web to help you get a great deal.
	www.technorati.com /tag/mortar (539 words)

	04060 - Masonry Mortar (Quikrete Companies (The))
		Masonry Mortar Mix: Factory blended hydraulic cement/lime/sand mix proportioned to produce masonry mortar complying with the property Specifications in ASTM C 270 for the specified type of masonry mortar; Quikrete Packaged Hydraulic cement/Lime Masonry Mix.
		Masonry Mortar Mix: Factory blended masonry cement/sand mix proportioned to produce masonry mortar complying with the property specifications in ASTM C 270 for the specified type of masonry mortar; Quikrete Packaged Masonry Mortar Mix.
		Retemper mortar that has stiffened because of evaporation of water from mortar by adding water and blending as frequently as needed to restore required consistency.
	www.arcat.com /sdspecs/htm/04060qui.htm?coid=35025 (1790 words)

	Mortar Board - Arista Chapter of Western Illinois University
		Mortar Board, Inc. is a national honor society that recognizes college seniors for their achievements in scholarship, leadership and service, provides opportunities for continued leadership development, promotes service to colleges and universities and encourages lifelong contributions to the global community.
		Membership within Mortar Board is one of the highest academic distinctions on campus.
		The members of Arista chapter of Mortar Board are involved with the national Mortar Board project, "Reading is Leading," which promotes literacy throughout the home community.
	www.wiu.edu /users/mimb (251 words)

	Mortar & Pestle
		Place the food in the mortar (bowl), use some downward pressure over the food with the pestle (pounder), and turn it in a circular motion around the mortar.
		Whether it's to grind some peppercorns, or your coffee beans, or avocadoes for guacamole, a mortar and pestle set can be a handy non-electric kitchen tool.
		It seems they originated the design, over 5,000 years ago, while the mortar and pestle appeared in Europe a mere 500 or so years ago.
	fantes.com /mortar_pestle.htm (727 words)

	Masonry Components - Mortar
		Hydrated lime: contributes to mortar's workability, water retentivity, and elasticity.
		Mortar sand: acts as a filler and contributes to strength.
		Bond: most critical property of mortar effecting long term strength of assembly and serviceability.
	www.nau.edu /otle/projects/larson/egr437/class/masonry/components/mortars.html (370 words)

	Mortar Installation Instructions (Site not responding. Last check: 2007-10-22)
		A mechanical mixer should be used and sufficient mortar should be mixed at one time that can be used within a 2-hour period.
		The exterior mortar joints should be tooled and care should be taken not to over-tool the mortar joints, which may darken the appearance of the mortar joints.
		Retempering of colored mortar with the addition of water should be avoided.
	www.solomoncolors.com /minstall.htm (739 words)

	Chemical Mortar Battalions
		A crew of the 83rd Chemical Mortar Battalion fires their M2 4.2" mortar in support of advancing Seventh Army units in the Vosges Mountains, late autumn 1944.
		Firing primarily white phosphorus (WP) projectiles to create smoke screens and high explosive (HE) shells for the usual tactical purposes, with 36 4.2” (107mm) mortars to a battalion, chemical mortar battalions packed a punch essentially equal to an entire division artillery brigade’s three 105mm howitzers, albeit at shorter range.
		There is also a nested organization chart depicting the generic organization of a WWII chemical mortar battalion, which was common to all three battalions that supported the 100th.
	www.100thww2.org /support/cm/cm.html (359 words)

	Bowling Ball Mortar Page: Docsmachine.com
		And at 500 yards, right at the base of the stand of trees off in the distance, is a full-size steel cutout of a moose, painted day-glo orange.
		Above, the guy with the mortar is pouring in some three ounces of Fg (coarse) Pyrodex fl powder...
		The owner is reluctant to do any additional welding on the pipe, for fear of making a weak or brittle spot, so he just stacks up whatever's handy to hold it, oh, 'bout there or so.
	www.docsmachine.com /nonPB/mortar.html (1167 words)

	M252 81mm Medium Extended Range Mortar (Site not responding. Last check: 2007-10-22)
		The M252 81mm Mortar System was developed under a co-developement agreement with the United Kingdom to replace the M29A1 Mortar.
		A Blast Attenuation Device (BAD) is attached to the muzzle of the cannon assembly to reduce the blast effects on the mortar crew.
		It is mostly commonly found in the mortar platoon of an infantry battalion.
	www.fas.org /man/dod-101/sys/land/m252.htm (191 words)

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