Search results
Results from the WOW.Com Content Network
Upon the stone he is directed to engrave crosses on each side with a knife, and then pronounce the following prayer: "Bless, O Lord, this creature of stone (creaturam istam lapidis) and grant by the invocation of Thy holy name that all who with a pure mind shall lend aid to the building of this church may obtain soundness of body and the ...
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. [4] It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk.
Brownstone was deemed "not really much good as a building material" by Vincent Scully, professor emeritus of the history of art at Yale University. [12] Brownstone was popular because it is unusually easy to carve and quarry, but these qualities also made houses clad in it susceptible to weathering and damage over time.
Mappable beds showing all the characteristics of the Upper Mottled Sandstone are found between the two basal beds of the conglomerates. The conglomerate is typically a medium to fine grained brown to buff sandstone consisting of angular to sub angular grains with scattered flakes of mica; it makes a good building stone.
A mason laying a brick on top of the mortar Bridge over the Isábena river in the Monastery of Santa María de Obarra, masonry construction with stones. Masonry is the craft of building a structure with brick, stone, or similar material, including mortar plastering which are often laid in, bound, and pasted together by mortar.
The first stone walls were constructed by farmers and primitive people by piling loose field stones into a dry stone wall. Later, mortar and plaster were used, especially in the construction of city walls, castles, and other fortifications before and during the Middle Ages. These stone walls are spread throughout the world in different forms.
Construction marble is a stone which is composed of calcite, dolomite or serpentine that is capable of taking a polish. [20] More generally in construction , specifically the dimension stone trade, the term marble is used for any crystalline calcitic rock (and some non-calcitic rocks) useful as building stone.
It is a generic building material and is used in building just about any type of structure in most climates. Wood can be very flexible under loads, keeping strength while bending, and is incredibly strong when compressed vertically. There are many differing qualities to the different types of wood, even among same tree species.