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The 15 cm M1881 was a breech-loaded rifled mortar with an early form of horizontal sliding block breech that used separate loading propellant charges and projectiles. There were two types of mount one was a static fortress mount that had a round metal base that bolted to a concrete slab or a mobile siege mount that bolted to a rectangular ...
Repointing is the process of renewing the pointing, which is the external part of mortar joints, in masonry construction. Over time, weathering and decay cause voids in the joints between masonry units, usually in bricks , allowing the undesirable entrance of water.
The M1877 was a short barreled breech-loading mortar. The barrel was a typical built-up gun of the period with reinforcing hoops which was built from cast iron and steel. . The mortar had an early form of Krupp horizontal sliding-block breech and it fired separate-loading, bagged charges and projectil
The 21 cm M1880 was a heavy mortar that was designed to provide high-angle indirect fire for siege operations. It could be used to either attack or defend fortified areas. In defense, the mortar was used to provide high-angle fire to destroy enemy communications, supply, and attack trenches dug by an attacker during siege operations or it could be used by an attacker to destroy gun turrets ...
Brick trowel: or mason's trowel is a point-nosed trowel for spreading mortar on bricks or concrete blocks with a technique called "buttering". The shape of the blade allows for very precise control of mortar placement. Bucket trowel: a wide-bladed tool for scooping mortar from a bucket; it is also good for buttering bricks and smoothing mortar.
The M1877 was a short barreled breech-loading mortar. The barrel was a typical built-up gun of the period with reinforcing hoops which was built from cast iron and steel. . The mortar had an early form of Krupp horizontal sliding-block breech and it fired separate-loading, bagged charges and projecti
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2S12 is in fact the designator for the combination of the 2B11 "Sani" heavy mortar with its transport vehicle 2F510, a GAZ-66-15 4×4 truck. The 2B11 weighs nearly 200 kg (500 lb) when fully assembled, and thus must be mounted to the 2×1 wheeled chassis 2L81 and towed to the emplacement site by the truck. The GAZ-66 prime mover also transports ...