Strengthening & Retrofitting

ROUTING AND SEALING OF CONCRETE CRACKS

Routing and sealing of Concrete Cracks Routing and sealing of cracks can be used for dormant cracks not involving the restoration of tensile strength. In this method the crack is enlarged along its exposed face to form a V-shaped groove up to a minimum width of 6 mm and a depth of 6 to 25(…)

EPOXY INJECTION FOR CONCRETE CRACK REPAIR

Epoxy injection for Concrete Crack Repair in foundations, basements, beams, columns, slabs, walls and other concrete structures   Injection of epoxies under pressure may be used to bond the cracks having greater than or equal to 0.05mm opening. This method is not applicable if the crack is active, the cracks are large in number, or(…)

SHORING AND ITS TYPES

Shoring is the construction of a temporary structure to support temporarily an unsafe structure. These support walls laterally. They can be used under the following circumstances: When walls bulge out When walls crack due to unequal settlement of foundation and repairs are to be carried out to the cracked wall. When an adjacent structure needs(…)

PROTECTION OF BUILDINGS AGAINST DAMPNESS

PROTECTION OF BUILDINGS AGAINST DAMPNESS One of the requirements of the building is that it should be dry. Dampness in a building may occur due to bad design, faulty construction and use of poor quality of materials. Dampness not only affects the life of the building but also creates unhygienic conditions of the important items(…)

STRENGTHENING OF FOUNDATIONS

Columns foundations need strengthening in the case of applying additional loads. Widening and strengthening of existing foundations may be carried out by constructing a concrete jacket to the existing footings. The new jacket hould be properly anchored to the existing footing and column neck in order o guarantee proper transfer of loads. The size of(…)

STRENGTHENING OF R.C.WALLS

The dimensions of the wall and its reinforcement are in creased by the following steps: 1. Roughing the total area of the concrete surface. 2. Installing steel connectors for the whole surface at 25-30cm spaces in both directions. The diameter of the steel connectors is determined according to the design and their depth should be(…)

STRENGTHENING OF R.C.COLUMNS

Strengthening of reinforced concrete columns is needed when: 1. The load carried by the column is increased due to either increasing the number of floors or due to mistakes in the design. 2. The compressive strength of the concrete or the percent and type of reinforcement are not according to the codes’ requirements. 3. The(…)



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