Makkah — Al-Khawajat Road, next to Kara Company Sat – Thu, 7 am – 6 pm
Mubarak Salih Factory Company for Industry logo Mubarak Salih FactoryCement · Volcanic · CurbstonesFormerly Al-Madinah Factory Request a quote
Technical specifications

Specifications in numbers, with a report behind every number

Get the number your project requires along with its proof: the issuing body, the report date and the size of the sample tested.

Weights

Volcanic block is about a third lighter than cement block

Choose a thickness and compare the weights of the types available in it, ordered from lightest to heaviest. Figures are in kilograms per piece; the standard block face is 40×20 cm.

  1. Pure volcanic insulated sandwich9
  2. Pure volcanic, 3-core 7-core 1412
  3. Volcanic blend insulated sandwich12
  4. Volcanic blend, 3-core14
  5. Pure volcanic insulated slab14
  6. Insulated cement sandwich16
  7. Volcanic blend insulated slab16
  8. Hollow cement, 3-core18
  9. Insulated cement slab20
  10. Solid cement33

Special pieces · 20×20×20 cm

  • Hollow cement, 3-coreHalf block 8 / pipe carrier 6
  • Pure volcanic, 3-coreHalf block 5 / pipe carrier 4
  • Volcanic blend, 3-coreHalf block 6
  • Insulated cementInsulated half block 8
  • Pure volcanic insulatedInsulated half block 5
  • Volcanic blend insulatedInsulated half block 6

Curbstones and bricks

  1. Cement curbstone 15×30×50 cm 44
  2. Cement curbstone 10×30×50 cm 31
  3. Automatic brick 20×10×6 cm 1.2
Compressive strength

The number your consultant will accept

Each type has a value declared by the factory, shown alongside the result of a sample tested by an external laboratory, with the test date and sample size — and it is that result that approval is based on. Values are in MPa, and the reports are attached to the quote.

Solid cement

Datasheet · MPa14 – 18 (ASTM C90)
Lab report results · MPa

40×20×10: 17.89 — 40×20×20: 14.30 and 15.30

Applus SAFCO 10/2022 (ASTM C90); Applus/SAFCO 05/2023

Hollow cement

Datasheet · MPa8 – 14 (ASTM C129)
Lab report results · MPa

From 6.38 (40×20×30, five cores) to 13.72 (40×20×15)

Applus Makkah 04/2025; Applus/SAFCO 05/2023; Soil and Foundations 09/2019

Insulated cement

Datasheet · MPa8 – 14
Report

A compressive strength report for this type and size is issued on request and attached to the approval file.

Pure volcanic

Datasheet · MPa6 – 8
Lab report results · MPa

40×20×20, three cores: 6.60

Applus Arabia Jeddah 11/2024 (ASTM C140)

Volcanic blend

Datasheet · MPa6 – 8
Report

A compressive strength report for this type and size is issued on request and attached to the approval file.

Insulated volcanic

Datasheet · MPa6 – 8
Lab report results · MPa

Blue slab: 6.25 — 7.5 cm sandwich: 5.53 — 5-core insulated: 7.58 (single sample)

Applus Arabia Jeddah 11/2024; Applus Makkah 09/2024

Automatic brick

Datasheet · MPa≥ 12
Report

A compressive strength report for this type and size is issued on request and attached to the approval file.

The ASTM C129 minimum for non-load-bearing units: 4.14 MPa average and 3.45 MPa individual. The limit in the solid-block report template under ASTM C90: 13.1 MPa average and 11.7 MPa individual, on net area.

Fire resistance

Up to 4 hours of fire resistance, depending on type and insulation

If your project requires a specific fire-resistance duration, choose the type and insulation that achieve it. Ratings are calculated using the NCMA TEK method based on equivalent thickness and issued for specific samples; type, size and insulation are verified to match before approval.

4.0hours

Volcanic 40×20×20 + blue center-slab insulation (30×4.5 cm)

Equivalent thickness: 122.5 mmApplus Arabia Jeddah — 25/11/2024
3.5hours

Volcanic 40×20×20 + 7.5 cm blue sandwich

Equivalent thickness: 111 mmApplus Arabia Jeddah — 25/11/2024
2.8hours

Block 40×20×20 (Concrete Masonry Unit)

Equivalent thickness: 97.6 mmApplus Arabia Jeddah — 06/10/2025
2.3hours

Standard volcanic 40×20×20

Equivalent thickness: 87.5 mmApplus Arabia Jeddah — 25/11/2024
2.2hours

15 cm wide block

Equivalent thickness: 84.7 mmApplus Arabia Jeddah — 06/10/2025
2.07 / 2.03hours

Insulated hollow cement 25 cm / insulated hollow volcanic 25 cm

Asas Laboratory — 03/12/2025
1.4hours

10 cm wide block

Equivalent thickness: 67.5 mmApplus Arabia Jeddah — 06/10/2025
1.25hours

Hollow 40×20×20 (4 cores)

Equivalent thickness: 102 mmFugro-Suhaimi — 05/06/2014
Insulation and properties

Thermal and acoustic insulation, in numbers

Thermal conductivity, noise reduction and density for each type. The thermal performance of the wall itself is calculated by the designer for the complete wall — block, plaster and finish. If your project requires a specific value, state it in your quote request so a report can be issued for it.

Thermal conductivity≈ 0.125 W/m·K Pure volcanic block (pozzolan material)
Noise reduction3 – 6 dB Volcanic and insulated block
Insulation slab thickness3.7 cm (size 20), 3.9 cm (25 and 30), 7.5 cm (sandwich) Insulated cement and volcanic block
Polystyrene densityWhite 10–12, blue 32–35, sandwich 24 kg/m³ Insulated block
Bulk density2.1–2.3 g/cm³ (hollow cement); 2.03–2.47 (insulated) By type
Water absorption≤ 15% Automatic brick only

Whether a product is suitable for a specific structural use is determined by the drawings and the design engineer or consultant.

Weight and size tables

Weights and compressive strength for all types and thicknesses are shown on this page.

View the tables

Laboratory reports

Copies of the reports are sent with the supplier approval file on request.

Request the reports

A specification your project requires

State the required property in your quote request so it can be reviewed before you commit.

Request a product specification
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