PRODUCT & APPLICATION

METHOD

COST ANALYSIS

1.For mass concreting and dams where highly plasticized mortar, with high impermeability coefficient is required, we recommend our      Entrair RET-1025, ERE-1025 is mixed in the proportion of 200 ml per bag of cement in high speed mixer to ensure optimum air         entrapment. 

Mix cement, coarse aggregates and fix aggregate as usual.   Add water in the proportion of W:C 43 to 50. Use 200 ml   RET-1025 200ml per bag of    cement.                       

Considering 15% cement mix, per meter cube amount of REC 1025 is 1.50 litres. Cost of REC @ Rs.90/- per litre dosage of 1.50 Lts. REC 1025 works out to Rs.135/- per metre cube of concrete.

2.For masonary portion, use Super Plasticizer  1156 @ 200 ml per bag of cement. This mortar highly plastic mortar at low water cement  ratio high workability, and high strength  mortar. It is possible to save cement upto  30 – 40% wit increased strength.

Mix cement sand in the  proportion 1:4 or 1:6. Use  SPRET 1156 @ 200 ml per bag of cement.                 

Considering 1:6 cement aggregate mortar, per metre cube quantity of SPRET 1156 required will be 1.43 litre.  Cost of SPRET 1156 @ Rs.110 per litre. Cost of dosage per metre cube of cement mortar Rs.157.30.

3.Cementitions grouting is carried out on complete construction, at masonary portion  and mass concrete portion to increase    overall impermeability coefficient of   the entire structure. Water cement slurry in proportion of 1:10 to 1:5 is grouted  by +ve displacement mechanical pumping blow pressure levels of 2.00 Kg.Sq.cm. Use of Rapid Grout allows reduction of water cement ratio, faster grouting and tremendous  saving of cement, eliminates cement wasting   completely.

For earth grouting Rapid Grout ensures rapid slurry plugging and high plugging efficiency.  It also saves cement tremendously.

Prepare cement slurry using cement and water add 500 ml  Rapid Grout per bag of cement and grout as usual.         

The grouting slurry composition has to be varied continously keeping in mind rate of flow, the grouting pressure and ejection of slurry if any. The estimate is being prepared on per bag of cement basis. Cost of Rapid Grout Rs.67/- per Litre @ 500 ml per bag of cement 1e.Rs.33.50per bag of cement.

4.The down stream portion of the dam is gunniting using 20-25% cement and sand Force under pressure.

During gunniting operation if the throw back is high the cement consumption is high. If the gunniting is porous, high volume of cement  slurry is consumed in grouting. To reduce cement consumption in grouting Anchorex ensure impervious & dense gunniting with minimum cement consumption, Anchorex is used as gunniting aid.

Add one litre Anchorex per bag of cement in gunniting mix &  complete gunniting. Cement saving upto 30%-40% is possible without  loss of quality if anchorex is used

Cost of Anchorex is 101 in

200 ltrs barrel Rs,150\-. 

dosage of 1 ltr per bag of

cement ie.Rs.150\-per bag

of cement.

5.Lower discharge gate is practically always submerged. The gate guides are imbeded in the  surrounding concrete using suitable anchoring.      

However due to constant hydrostatic pressure these gate guides tend to loosen and weaken allowing  constant water discharge. The gate guides can be butteressed and reinforced with our P.A. Mortar TH –4. 

Epoxy Mortar R2 EM-105 is factory  prepared mortar comprising of Resin & Hardner. These two components are mixed together at site to obtain a  fast setting mortar of compressive strength 1200 Kg/Sq.cm. It requires no curing.   

Cost of Epoxy Mortar R2 EM-105 is Rs.205 per kg the spacific gravity of this product is 1.40.

6.Discharge buckets, discharge to hidel power station, and areas subject to high pressure water   flow prone to rapid errosion are treated with a  layer of P.A. Mortar-TH4 2mm thick, which has high abrasion resistance, high compressive strength protecting the underlying concrete from rapid degradation.

Epoxy Mortar R2 EM-106 is trowable mortar & can be thowalled on vertical surface upto thickness of 2mm.       

Cost of RZ EM-106 is Rs.200 per kg for 2mm layer  coverage is 2.5 sq ft. Cost per sq ft is Rs.80/-.

7.Concrete Cure Coating For large construction the water curing is   expensive & laborious. Concrete cure coating eliminates water curing, it ensures uniform    concrete hydration. Useful for canal lining,

Mix water to Concrete Cure Coating in proportion 1:2. Within 1 to 1\2 hour  after placing of concrete or cement   mortar, spray C.C.C over the entire gunnited surface, C.C.C forms a   restraining water loss from the water in concrete allowing uniform hydration of cement mortar.          

Cost of concrete cure coating Rs.80\-per ltr. Covering after addition  of 2 ltrs. of water is 20 sq mtre ie. Rs.4.00 per sq metre. (The cost of water curing @ Rs.300\- per 10 KL Water, labour cost of Rs.7.50 per man hour is Rs.2.75 per sq ft).

8.Colgrout Admixture for Colgoruting sand and   cement slurry. Improves strength, eliminates  seggregation, ensures uniform colliodal grout,  ensures complete void filling, ensures no  dosage  residual voids.

Mix CG -101 to cement sand and  water in Colgrout dispenser. Use 200ml CG –101 per bag of cement.

Cost of CG –101 is Rs. 40/- per kgs, dosage of 200ml Costs Rs. 11.20 [Sp. Gr. 1.4]

9.Special Grouting System is specially designed  to increase impermeability co-efficient of      matrix exhibiting low impermeability to water 

Special inejection system developed by our in house R & D to inject Special Grouting System stopping leakage in Inspection tunnels.