ROAD AND BUILDING CONSTRUCTION MATERIAL IN KENYA AND TANZANIA.
Sand is used with cement and sometimes lime, to make mortar for masonry work and plaster Sand is also used as a part of the concrete mix.
Used for construction purposes when cut or pressed into lumber and timber, such as boards, planks and similar materials. It is a generic building material and is used in building just about any type of structure in most climates.
Softwood is used as a lower-value bulk material, whereas hardwood is usually used for finishings and furniture
There are many types of metals used for building. Metal figures quite prominently in prefabricated structures can be seen used in most cosmopolitan cities.
Steel is a metal alloy whose major component is iron , and is the usual choice for metal structural building materials. It is strong, flexible, and if refined well and/or treated lasts a long time.
The lower density and better corrosion resistance of aluminium alloys and tin sometimes overcome their greater cost.
Copper is a valued building material because of its advantageous properties (see copper in architecture. These include corrosion resistance, durability, low thermal movement, light weight, radio frequency shielding, lightning protection,
Concrete is a composite building material made from the combination of aggregate and a binder such as cement. The most common form of concrete is cement concrete, which consists of mineral aggregate (generally gravel and sand) bamburi and water. For a concrete construction of any size, as concrete has a rather low tensile strength, it is generally strengthened using steel rods or bars to reinforced concrete