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The inspection and test plan is a vital part of Quality control and Quality assurance

plan. It occurs in different stages of work implementation as already shown in our

Performance schedule. The test plan procedure is carried out in three stages ofinspection and testing.

1. Surface preparation

2. Coating applications

3. Concrete Repair

1. Surface Preparation:

On Steel Beam Surfaces

During surface preparation, the one length section of steel beam is enclosed

properly with management of proper air circulation system equipment such as

PARP and Respiratory Protective devices. Steel has to be sand blasted according

to SSPC-SP-10 (NACE Standard) or SA 2 (ISO 8501-1). Average surface profile

Rz > 50 m has to be achieved. Ensure that the substrate is free from

containments detrimental to adhesion. The blasting is done by Euro grit,

Aluminum Oxide, Copper slag 1 and 2.The surface is thoroughly inspected to

remove any sharp edges, undercut, rough beads etc. After inspection, the survey

of steel member will carry out to determine thickness with precise measurement

such as calipers and the steel area loss is calculated in percentage at the Initial

and after blasting. Furthermore, the procedure is carried out as specified in

specification for strengthening. After strengthening, again the surface

roughness, splatter of weld is inspected and removed if any.

On Concrete Surfaces

All the Cracks underside of slab will be inspected thoroughly and marked the

repair areas. The temporary propping will be done around the repair areas. The

Loose concrete near the cracks will be removed and concrete will be removed at

least 25mm behind the rusted reinforcement. The rusted bar is blast clean. The

repair area will be enclosed properly with management of proper air circulation

system equipment such as PARP and Respiratory Protective devices. Rusted

Steel has to be sand blasted according to SSPC-SP-10 (NACE Standard) or SA 2 (ISO 8501-1). Average surface profile Rz > 50 m has to be achieved. Ensure that

the substrate is free from containments detrimental to adhesion. The blasting is

done by Euro grit, Aluminum Oxide, Copper slag 1 and 2.The diameter of steel

reinforcement will be measured and the steel area loss is calculated in

percentage at the Initial and after blasting. Furthermore, the procedure is carried

out as specified in specification for strengthening.

2. Coating applications:

The Coating of Steel beam will be done by Sika Guard 62.The working areas shallbe protected from strong winds or rain etc., to prevent adverse conditions for the

materials preparation, application and curing during and after the lining works.

The Climatic conditions such as Ambient and Surface temperature shall be

defined as Substrate temp. > 3K above dew point and measured e.g. by

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thermometer, hygrometer, dew point table. The range of temperature should be

Min. +10C (but at least 3K above dew point) and Max. +35C. In all of the

application condition, the substrate must be at least 3K above dew point. The

mixing and application of this coating along with the applicators information is

attached in the Annexure of this submittal for reference.

3. Concrete repair:

After Completion of strengthening of reinforcement bars, the Coating of steel bar

carry out by Sikaguard 62. The working areas shall be protected from strong

winds or rain etc., to prevent adverse conditions for the materials preparation,

application and curing during and after the lining works.The Climatic conditions

such as Ambient and Surface temperature shall be defined as Substrate temp. >

3K above dew point and measured e.g. by thermometer, hygrometer, dew point

table. The range of temperature should be Min. +10C (but at least 3K above

dew point) and Max. +35C. In all of the application condition, the substratemust be at least 3K above dew point. The mixing and application of this coating

along with the applicators information is attached in the Annexure of this

submittal for reference. After completion of Coatings, a dense concrete repair

mortar, Sika MonoTop 615HB will be applied as mentioned in data sheets of Sika

Monotop 615HB.

The Inspectors CV and inspection procedure check list of Steel beam lining is also

attached in the Annexure-I of this submittal for reference.