16 May 2022 admin Construction, Construction Material, Quantity Estimate Leave a comment

Dry weight of sand mortar

Mortar is heterogeneous mixture of cement sand and water. Water reacts chemically with cement ingredients resulting in hydration of cement and fills the voids between cement and sand. As water is added to dry cement sand mixture the volume reduced. For quantity estimate of cement sand mortar the wet mortar’s volume should be increased to account for Water required for hydration. Water required filling of voids. Dry weight of mortar = Wet weight of mortar * 1.33

19 January 2022 admin Construction Material Leave a comment

Geological Classification of Rocks

On the basis of geological occurrence, rocks are classified into three categories: Sedimentary Rocks Igneous Rocks Metamorphic Rocks Sedimentary Rocks Rocks formed due to deposition of minerals one over another due to action of water, wind, and other natural agents is called sedimentary rocks. Sandstone Limestone Shale Claystone Conglomerate Dolomite Igneous Rocks Rocks formed due to volcanic action when magma or lava cools down and solidifies is called igneous rocks There are two types of igneous rocks: Plutonic Rocks Igneous […]

15 January 2022 admin Construction Material Leave a comment

Properties of building stone

Stone is one of building material used for masonry construction. They are large in size and cover greater area with less number. Stones have greater durability and weather resistance property as compared to bricks. Appearance and Texture Stones should have homogenous structure and be uniform in color. When stones are used for face work the appearance is of great importance Weight Stone used for building construction should have specific gravity greater than 2.4. Greater the weight , higher will be […]

13 January 2022 admin Construction Material Leave a comment

Forms of Brick

There are different forms of brick on the basis on their length breadth and height orientation. Full Brick: If the brick is not disturbed in it’s original 3 dimensional orientation it is called full brick. Half Bat: If the brick is halved from the length. Quarter Bat: If the brick is quarter cut from the length. Beveled Bat: If half bat is cut with it’s width full cut and length side half cut Queen Closer: If the brick is halved […]

7 November 2021 admin Construction Material Leave a comment

Brick Classification

Brick are classified into three groups on the basis of their water absorption and strength. First Class Brick They have the compressive strength of 10 N/mm2. The water absorption should not be more than 15% of the self weight within 24 hours of immersion in water.The shape are proper and size are upto the standard. Second Class Brick They have the compressive strength of 7.5 N/mm2. The water absorption should not be more than 20% of the self weight within […]