However, igneous rock uses are specific to its type, which is classified according to the formation process, mineral content, hardness, texture and other properties. limestone, ... Civil Engineering Search. It is used for its optical properties in cosmetics, paint, and paper. Due to seasonal variations the materials are deposited in layers. In the nature there are so many types of rocks are available which are used in construction and engineering purposes. Metamorphic rocks are used for roofing material, decorative gardening stone, the base for snooker tables, building material, sculpture material and paving material. Based on this, science has divided rocks into three categories-Igneous Rocks; Sedimentary Rocks; Metamorphic Rocks Types, Importance and Uses of rocks in constuction. It is used for its chemical properties in pharmaceuticals and agriculture. All civil engineering structures are built on rock so, engineering properties of rocks are very much important. ... Metamorphic Rocks Metamorphic rocks form when rocks undergo metamorphosis/changes due to heat and pressure. Slate starts out as … Classification of rocks. Uses of sedimentary rock can be found in almost all buildings and public structures. Some gneiss is durable … Metamorphic rocks come in three different types: slate, marble and schist. Igneous Rocks 2. Uses of rocks in Civil and Highway Engineering are: Blocks of stones are used in foundations, walls, bridge pier, abutments, lighthouses, aqueducts, and retaining walls. Igneous Rocks 2. Marble is used for statues and decorative items like vases (Figure). Quartzite and marble are the most commonly used metamorphic rocks. Gneiss usually does not split along planes of weakness like most other metamorphic rocks. Types, Importance and Uses of rocks in constuction. Sedimentary rocks in general are not used in engineering. MARBLE: A metamorphic even-granular grain to medium grained and may be uneven granular and coarse grained in calc-silicate rock. Perhaps what are they used for? Many sedimentary rocks are simply dug up as is, in small pieces, or crushed into construction sand and gravel with various engineering uses, too many to really enumerate. Metamorphic Rocks Engineering Properties of ROCKS: Rocks have very much importance in engineering point of view. They are frequently chosen for building materials and artwork. Piece of slate, metamorphic rock Slate is a good roofing material, but people also use it for decorative gardening stones, as a base for snooker tables and it was used as a writing board (or writing slate) in the Victorian classroom. Marble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings. This allows contractors to use gneiss as a crushed stone in road construction, building site preparation, and landscaping projects. While there is an array of naturally colored stones out there, most of them have a prominent criterion which is the formation process of how rocks are made. ... sedimentary and metamorphic rocks. Rocks used in Road ... Metamorphic Rock . In nature, there are three main kinds of rocks, namely, the igneous rocks, sedimentary rocks and metamorphic rocks. Sedimentary Rocks 3. Igneous as well as sedimentary rocks are changed in character when they are subject to great heat and pressure.