The project area of study is in Kenya`s central province Nairobi county Kamkunji constituency, it is along the ladhies road which connects Haile Selassie avenue and country bus station area ,It is located near the growing business zone Muthurwa market which is 12 hectare land owned by county government of Nairobi. The approximate population for the 7km radius is about 1,196,237, the coordinates of the area latitude=-1.2881 lat (DMS), longitude 36.8365 and altitude 5869.

Management of materials in construction projects in the Kenyan Construction Industry has not has been effective as intended this has led to an increased of abandoned projects and completed projects that have consumed more time and costs than had been scheduled for. The materials management in construction has caused more harm than good both to the consumers and the clients.

Since concrete is the most important building material used in construction industry globally, its production has become expensive over the years due to an increase in demand for housing. This has led to an increase in prices of both aggregates and cement. One of the development goals of Kenya’s big four agenda is to provide affordable housing to all people especially in slums and shanties, this may be seamlessly achieved by provision of quality and affordable building materials such as aggregates.