Oridinary Portland Cement 43 grade (OPC)

///Oridinary Portland Cement 43 grade (OPC)
Oridinary Portland Cement 43 grade (OPC)
Product Details

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Product Description
43 Grade Cement is the popular Brand Cement with low heat of hydration and long life of Concrete Structures.
ADVANTAGES
  • Develops early strength at 3 and 7 days with exceptionally high 28 days strength. Form work of slabs and beams can be removed much earlier which results in increased speed of construction.
  • Unbeatable consistency in quality gives better accountability for mix design
  • The higher characteristics strength of concrete leads to higher bond strength minimizing the possibility of slippage of reinforcements.
  • The dense and least permeable concrete prevents leakage / seepage problems.
  • Its high fineness offers better workability for a given water cement ratio ensuring very dense, compact and durable concrete.
  • Being the low alkali cement it provides insurance against alkali-aggregate reaction, this results in durable structures.
IDEAL APPLICATIONS
  • Residential and commercial complex.
  • PCC solid and hollow blocks
  • Defense Constructions
  • Airport-Runways
  • Cement tanks
  • Asbestos cement products
  • Concrete roads and Ferro-cement concrete elements
 BIS SPECIFICATIONS AND SDCC NORMS OF 43 GRADE OPC
Sr.No. Description Unit Req. as per IS-
12269- 1987		 SDCC Norms
A) CHEMICAL COMPOSITION
1. Insoluble Residues(IR) % 3.0 Max 2.0 Max.
2. Magnesium Oxide(MgO) % 6.0 Max 2.5 Max.
3. Sulphuric Anhydride(SO3) % 2.5 Max when C3A<5 & 3.0
Max when C3A>5		 2.75 Max.
4. Loss on Ignition(LOI) % 5.0 Max 3.5 Max.
5. Lime Saturation Factor (LSF) % 0.66-1.02 0.89Min.
6. Alumina Iron ratio (A/F) % 0.66 Min. 1.10 Min.
7. Chloride (CI-) % 0.10 Max. 0.05 Max
B) PHYSICAL PROPERTIES
1. Specific Surface m2/kg 225 Min. 280 Min.
2. Soundness (Expansion)
a) By Le-Chatelier mm 10.0 Max. 3.0 Max.
b) By Autoclave % 0.8 Max. 0.2 Max
3. Setting Time
a) Initial Set Minute 30 Min. 70 Min.
b) Final Set Minute 600 Max. 250 Max.
4. Compressive Strength
a) 3 days MPa 23 Min. 32 Min.
b) 7 days MPa 33 Min. 42 Min.
c) 28 days MPa 43 Min. 55 Min.