masonry dam is usually built by masonry that is basically stones,bricks and cement and in which the force that holds the dam in place against the push from the water is earth's gravity pulling down the mass of the dam
lighter and stronger man made materials are invented all the time. You can't change the nature of stone, and we have pretty much hit the appex of methods to cut it, but every year new tech comes out that makes new products that are stronger and better then before.
Before bricks (as we know them today) were made stones dug from the ground were used. Later this process changed from raw stones to those of a slightly softer composition like sand stone in certainareas as this compund was softer and could be fashioned in to carved shaped and square edges for better, faster building.
Masonry cement is basically normal Portland cement with added ingredients to provide the plasticity required for masonry work. Masonry cements are pre-packaged primarily as either Type N Masonry Cement or Type S Masonry Cement. Other types are available for specific circumstances. Type N Masonry mortar is recommended for general use in building non-load bearing walls as well as for exterior veneer walls not requiring high strength. Type S Masonry mortar is recommended for use in all masonry below grade as well as in building exterior load bearing walls requiring high strength. DO NOT use masonry cement for concrete jobs
explain about bamboo bridge. how made bamboo bridge. what are the uses fo bamboo bridge
Bridges have been built since the stone age, it is impossible to say where or when the first one was built.
The first permanent stone- bridge was the Chain Bridge started in 1839 built to the plans of the engineer William Clark
masonry dam is usually built by masonry that is basically stones,bricks and cement and in which the force that holds the dam in place against the push from the water is earth's gravity pulling down the mass of the dam
The term masonry refers to structures made from brick, stone, concrete and marble. Therefore, a masonry saw is used to cut through brick, stone, concrete and marble.
made with stone, marble and masonry
Stone
stone and stuff
steel & stone
The current bridge was built in 1973
Stone, iron and/or steel, concrete, and brick. ADDED: The primary structure of the visible parts of the bridge is a steel frame, clad for weather-protection and appearance by the ornate stone-work.
it was built in 1859
Stone and steel.