Monthly Archive: September 2019

CURING OF CONCRETE 5

CURING OF CONCRETE

WHAT IS CURING ? Curing is the process of maintaining moisture on the surface of the concrete which helps the concrete to gain strength. Concrete gradually hardens and gain strength after its initial set. For this hardening to proceed and the concrete to develop its maximum strength, there must be water present in the mix. During the early days after the initial set, there is rapid loss in water, the...

HOW TO PRODUCE CONCRETE 4

HOW TO PRODUCE CONCRETE

There are two ways of manufacturing concrete namely : nominal mix and design mix. Nominal mix is used for normal construction works such as small residential buildings. Most popular nominal mix are in the proportion of 1:2:4. Design mix concrete are those for which mix proportions are finalized based on various lab tests on cylinder or cube for its compressive strength. These tests are conducted to find suitable mix based...

CONCRETE 8

CONCRETE

Concrete is a mixture of construction materials comprising of cement, fine (sand) aggregates and coarse (gravel) aggregates with water for hardening. The most commonly used type of cement for concrete is Portland Cement. Uses of Concrete Concrete is used for the construction of foundations, columns, beams, slabs in construction. Components of Concrete These includes cement, sand, aggregates (fine and coarse) and water. The cement paste which is the mixture of...

AGGREGATE IN CONSTRUCTION, TYPES AND CHARACTERISTICS 4

AGGREGATE IN CONSTRUCTION, TYPES AND CHARACTERISTICS

Aggregates are particles of broken stone and sand which form the major component parts of concrete. Aggregate materials commonly used for concrete are sand and gravel. In construction, the material which binds the aggregates together is cement and it is described as matrix. Characteristics of Aggregate Aggregate for concrete should be hard and durable. It should not contain materials like clay, coal or pyrites that decompose or change in volume...

DAMP PROOF MEMBRANE 3

DAMP PROOF MEMBRANE

A Damp-proof membrane is a polyethylene sheet laid under a concrete slab to prevent the concrete from gaining moisture through capillary action. It is a membrane applied to prevent moisture rising through the structure. Concrete is spread oversite as a solid base for floors and as a barrier to prevent moisture rising from the ground. Concrete is known to be permeable to water and will absorb moisture from the ground....

CONSTRUCTION AND LAUNCHING OF THE REAL MADRID FOOTBALL ACADEMY IN PORT HARCOURT 0

CONSTRUCTION AND LAUNCHING OF THE REAL MADRID FOOTBALL ACADEMY IN PORT HARCOURT

Real Madrid football academy in Port Harcourt was conceived and initiated by the Rivers State Government under the administration of Gov. Nyesom Wike on the 27th of may, 2018. The Rivers State Government had intensified work progress on the construction of the Real Madrid Football Academy in Port Harcourt. The facility is situated at the precincts of the Yakubu Gowon Stadium in Port Harcourt. The Construction of the Real Madrid...

TYPES OF FOUNDATIONS 1

TYPES OF FOUNDATIONS

Foundation in construction are generally classified into two, namely Shallow Foundation and Deep Foundation. Shallow Foundation transfers the load to a stratum present in a shallow depth. While the deep foundation transfers the load to a deeper depth below the ground surface. High-rise building like a skyscraper or a building constructed on very weak soil requires deep foundation. If the constructed building has the plan to extend vertically in future,...

Types of Raft Foundation 0

Types of Raft Foundation

In construction, several types of Raft foundation may be used depending on the condition of soil and the load that would be imposed on the foundation. The followings are the different types of raft foundation used in construction: Flat plate mat Cellular Raft Foundation Piles raft Foundation Slab Beam Raft Wide toe Raft Slip Plane Raft 1. Flat Plate Mat This is a reinforced concrete slab of uniform thickness covering...

WHAT IS RAFT FOUNDATION IN CONSTRUCTION 5

WHAT IS RAFT FOUNDATION IN CONSTRUCTION

Raft foundation is the type of foundation with thick concrete slab spread across the entire area of the building reinforced with steel to support heavy structural loads from columns and walls and transfer loads from the structure to stop the soil. Raft foundation is generally used to support structures like residential or commercial buildings where soil condition is poor, storage tanks, silos, foundations for heavy industrial equipment etc. Raft Foundation...

TYPES OF PILE FOUNDATION 2

TYPES OF PILE FOUNDATION

Types of Pile foundations can be generally classified based on function, materials and installation process, etc. The followings are the types of pile foundation used in construction: A. Based on Function Sheet Piles Load Bearing Piles End bearing Piles Friction Piles Compaction Piles B. Based on Materials and composition Timber Piles Concrete Piles Steel Piles Composite Piles C. Based on Installation Methods Cast-in-situ Piles Driven Piles Driven and Cast-in-situ Piles...