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Cement Types and Analysis

Portland, limestone, composite and export-class cements from Iranian producers, with 2023 test results for thirteen types.

Overview

Kasra does not produce cement. We select cement from reliable Iranian producers and trade it to clients in Turkmenistan, Uzbekistan, Kazakhstan, Afghanistan and beyond, working from the producer’s quality-control test reports shown below.

Type 1 is general-purpose Portland cement. Type 2 has moderate sulfate resistance and moderate heat of hydration. Type 3 gains strength early. Type 5 (HSR) resists high sulfate levels. Numbers such as 325, 425 and 525 give the strength class, the 28-day compressive strength in kg/cm². Limestone and composite cements blend Portland clinker with limestone or other additions, and M400 and M500 are strength grades used in export markets.

13 cement types
2023 test results
INSO 389 and test methods INSO 390–394

Supply terms

Packaging50 kg bags, 1,500 kg jumbo bags and bulk
DeliveryEx-factory, or delivered at the Incheh Borun border on a truck or at the railway station
Minimum order500 tons
Loading portAmirabad
50 kg Portland cement bag
50 kg bag
1,500 kg Portland cement jumbo bag
Jumbo bag, 1,500 kg

Physical test results (2023)

Test Type 1-325 Type 1-425 Type 1-525 Type 2-325 Type 2-425 Type 2-525 Type 3-425 Type 5-425 HSR Limestone Composite A-32.5R M400 M500 M500 HSR
Fineness (Blaine), cm²/g (INSO 390) 2800 3200 3600 2700 3155 3600 3650 3550 3050 3060 3155 3500 3650
Autoclave expansion, % (INSO 391) 0.06 0.035 0.028 0.046 0.046 0.046 0.025 0.035 0.067 0.049 0.047 0.047 0.035
Initial setting time, min (INSO 392) 140 125 120 135 130 125 110 120 130 140 130 135 110
Final setting time, min (INSO 392) 220 200 195 215 200 200 190 195 210 220 220 210 200
Compressive strength, 2 days, kg/cm² (INSO 393) — 205 225 195 205 230 220 225 — — 205 205 235
Compressive strength, 3 days, kg/cm² 200 275 330 225 270 320 320 — 215 — 240 — 340
Compressive strength, 7 days, kg/cm² 320 370 400 325 375 400 410 — 305 285 350 — 435
Compressive strength, 28 days, kg/cm² 380 475 530 375 465 530 500 500 390 375 460 525 520

A dash means no result is reported for that test and type.

Chemical analysis (2023, %)

Component Type 1-325 Type 1-425 Type 1-525 Type 2-325 Type 2-425 Type 2-525 Type 3-425 Type 5-425 HSR Limestone Composite A-32.5R M400 M500 M500 HSR
SiO₂ 21.17 21.19 21.14 21.11 21.11 21.11 21.08 21.3 20.76 21.15 21.11 21.14 21.3
Al₂O₃ 4.49 4.47 4.46 4.48 4.48 4.48 4.46 4.34 4.36 4.52 4.48 4.46 4.34
Fe₂O₃ 3.91 3.94 3.94 3.91 3.91 3.91 3.94 4.35 3.78 3.92 3.91 3.94 4.00
CaO 63.65 63.47 63.34 63.36 63.36 63.36 63.37 63.31 63.75 63.42 63.36 63.34 63.31
MgO 1.6 1.6 1.6 1.37 1.37 1.37 1.31 1.37 1.48 1.39 1.34 1.35 1.37
SO₃ 2.57 2.55 2.5 2.58 2.58 2.58 2.4 2.25 2.65 2.67 2.55 2.56 2.12
Na₂O 0.41 0.39 0.39 0.43 0.43 0.43 0.37 0.36 0.44 0.41 0.42 0.38 0.36
K₂O 0.48 0.43 0.44 0.48 0.48 0.48 0.45 0.44 0.49 0.49 0.46 0.46 0.44
Loss on ignition (LOI) 2.9 2.4 1.60 2.85 2.45 2.30 2.17 2.15 3.70 8 2.40 2.27 1.50
Insoluble residue (IR) 0.65 0.5 0.48 0.55 0.5 0.45 0.4 0.35 0.6 — 0.5 0.42 0.45
Free CaO 1.5 1.5 1.36 1.23 1.23 1.23 1.34 1.23 1.5 1.51 1.23 1.37 1.45
C₃S 53.2 53.6 53.6 52.8 52.8 52.8 53.9 54.4 51.2 52.2 52.9 53.2 56.5
C₂S 20.7 20.9 20.8 21 21 21 20.1 20 17.1 21.6 20.9 20.8 21
C₃A 5.3 5.2 5.1 5.3 5.3 5.3 5.2 4.1 5.2 5.4 5.3 5.2 4.7
Chloride (Cl⁻) — — — — — — — — — 0.015 — — —
2C₃A + C₄AF — — — — — — — — — — — — 20.8

Results from the producer’s 2023 quality-control report. Values vary by batch, so ask us for the current analysis.

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