Construction Water

DEEPA ENTERPRISES TESTING LABORATORIES

Construction Water Testing

We as a NABL accredited laboratory for construction water testing make sure that water used for mixing and curing of substances should be clean and free from any types of salts, sugar,oils, alkali, acid, organic material, vegetable growth and other contaminants. These components are detrimental for bricks, concrete, steel and stone used for construction work. Water being an essential element in construction has a direct impact on the strength of concrete, cement and mortar.

Construction Water Testing
Water is used in the preparation of mortar, mixing of cement concrete during construction. The strength of mortar and cement concrete depends on its quality and quantity, but the quality aspect of construction water is still ignored.

Potable water tested from construction water testing labs is generally considered satisfactory for mixing.


Household
Construction water testing services prove beneficial if you’re planning to build or renovate your own house.
- A strong place to live

- Safe construction water used

- No metal corrosion complaints


Builders
Tested or treated water will increase strength while making huge investments.
- Ensure strong structures

- No metal corrosion

- Safe & tested water for construction purposes


Construction Companies
Construction companies must associate themselves with accredited water testing laboratories.
- Business growth.

- Adds value to their clients

- Certifies the construction companies


Frequency of testing of water
Water from each source shall be got tested before the commencement of work and thereafter once in every three months till the completion of the work. Water from municipal source need to be tested only once in six months. Number of tests for each source shall be three.

Recommended Limits for Concrete Construction Water Tests
Water used for mixing and curing shall be clean and free from injurious quantities of alkalies, acids, oils , salts, sugar, organic materials, vegetable growth or other substance that may be deleterious to bricks, stone, concrete or steel. Potable water is generally considered satisfactory for mixing.

The pH value of water shall not be less than the following concentrations represent the maximum permissible values (of deleterious materials in water):

a) Limits of acidity: To neutralize 100ml sample of water, using phenolphthalein as an indicator, it should not require more than 5ml of 0.02 normal NaOH. The details of test shall be as given in IS 3025 (Para 22).

b) Limits of alkalinity: To neutralize 100ml sample of water, using mixed indicator, it should not require more than 25ml of 0.02 normal H2SO4. The details of tests shall be as given in IS 3025 (Para 23).

c) Percentage of solids: Maximum permissible limits of solids when tested in accordance with IS 3025 shall be as under:


The physical and chemical properties of ground water shall be tested along with soil investigation and if the water is not found conforming to the requirements of IS 456 – 2000, the tender documents shall clearly specify that the contractor has to arrange good quality water construction indicating the source.

(i) Water found satisfactory for mixing is also suitable for curing. However, water used for curing shall not produce any objectionable stain or unsightly deposit on the surface.

(ii) Sea water shall not be used for mixing or curing.

(iii) Water from each source shall be tested before the commencement of the work and thereafter once in every three months till the completion of the work. In case of ground water, testing shall also be done for different point of drawdown. Water from each source shall be got tested during the dry season before monsoon and again after monsoon.

 

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