Home » Concrete blocks » Greenbloc ultra

Greenbloc ultra

The UKs first cement-free ultra-low carbon dense concrete block. Powered by Cemfree, an ultra-low carbon alternative to traditional cement. Low C02. No compromise.

Technical Specs Get in touch

High density load bearing

Bulk dry material density of 1850-2000 kg/ma3

Sustainable aggregates

Greenbloc Ultra is responsibly sourced and sustainable high-quality sands, aggregates and Cemfree.

H.S.E

100mm Greenbloc Dense complies with H.S.E

British standards

Manufactured to BS EN 771 and stored, placed and manufactured in the same way as conventional blocks

Wide range of usage

Suitable for foundations, load bearing walls, internal leaves of cavity walls, partition walls

Delivery

Available throughout the UK

Calculate your carbon saving by choosing Greenbloc

How many concrete blocks do you need?

Figures compared against a dense concrete block manufactured with 100% Ordinary Portland Cement. Figures based on Greenbloc Standard.

Enter your own amount below:

Turning off

low energy lights for a year

From London to New York

times in a plane

Driving a petrol car

miles

Equivalent of planting

trees per year

Ultra-low carbon blocks with up to 80% lower eCO2**

At our current rate of material consumption, we’re absorbing 157% of the natural resources on the planet – meaning we’d need an Earth and a half to maintain our ecological footprint. As a building material, cement cannot be matched. But as the worlds third highest source of man-made CO2, something has to change!

Switching to Greenbloc for your build means offsetting the electricity emissions (and a bit more) for an entire year.*

Reduced resource deletion by substituting cement with an industrial by-product. Strengths achieved comparable to conventional concrete**.

*Data from The National Energy Foundation

**compared to a dense concrete block manufactured with 100% Ordinary Portland Cement

Supplying builders merchants & large construction projects

As a UK manufacturer and supplier of concrete blocks and limestone aggregates, we can deliver concrete products to builder’s merchants and the trade throughout north Wales and the north-west of England.

Whether you require concrete blocks and aggregates for a large scale development project or just to maintain stock levels in your yard, we can offer competitive pricing and high-quality concrete products.

Product Code	351410GB	301410GB	3001400GB	301610GB	351410GBS	301610GBS	351410GBP	301610GBP
Product Type	Greenbloc Greenbloc Solid Dense Ultra	Greenbloc Modulite Ultra	Greenbloc Laylite Ultra	Greenbloc Modulite Ultra	Greenbloc Solid Dense Standard	Greenbloc Modulite Standard	Greenbloc Solid Dense Premium	Greenbloc Modulite Premium
Thickness (mm)	100	100	100	140	100	140	100	140
Form	Solid	Solid	Solid	Solid	Solid	Solid	Solid	Solid
Paint grade	No	Yes	No	Yes	No	Yes	No	Yes
Ground Condition Suitability	DS1/DS2/DS3	DS1	DS1	DS1	DS1/DS2/DS3	DS1	DS1/DS2/DS3	DS1
Metres per pack (m2)	7.2	7.2	9	4.8	7.2	4.8	7.2	4.8
Blocks Per Pack	72	72	90	48	72	48	72	48
Dry density (kg/m3)	1850-2000	1350-1600	1020-1180	1350-1600	1850-2000	1350-1600	1850-2000	1350-1600
Approx weight (kg)	18.2	13.2	11.3	18.6	18.2	18.6	18.2	19.4
Compressive strength (N/mm2)	7.3	7.3	4.2	7.3	7.3	7.3	7.3	7.3
Thermal Conductivity W/mK λ10, dry	1.11	0.48	0.31	0.48	1.11	0.48	1.11	0.48
Fire Resistance1 (Hours)	4	4	4	4	4	4	4	4
Reaction to Fire	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)	Euro Class A1 (Non Combustible)
Sound reduction value2 (dB)	49	46	45	49	49	49	49	49
Sheer Bond Strength (N/mm2)	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15
Durability to Freeze/Thaw	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed	Recommended not to leave exposed

Product Code

351410GB

301410GB

3001400GB

301610GB

351410GBS

301610GBS

351410GBP

301610GBP

Product Type

Greenbloc Greenbloc Solid Dense Ultra

Greenbloc Modulite Ultra

Greenbloc
Laylite
Ultra

Greenbloc
Modulite
Ultra

Greenbloc
Solid Dense
Standard

Greenbloc
Modulite
Standard

Greenbloc
Solid Dense
Premium

Greenbloc
Modulite
Premium

Thickness (mm)

100

140

100

140

100

140

Form

Solid

Paint grade

Yes

Ground Condition Suitability

DS1/DS2/DS3

DS1

DS1/DS2/DS3

DS1

DS1/DS2/DS3

DS1

Metres per pack (m2)

7.2

4.8

7.2

4.8

7.2

4.8

Blocks Per Pack

Dry density (kg/m3)

1850-2000

1350-1600

1020-1180

1350-1600

1850-2000

1350-1600

1850-2000

1350-1600

Approx weight (kg)

18.2

13.2

11.3

18.6

18.2

18.6

18.2

19.4

Compressive strength (N/mm2)

7.3

4.2

7.3

Thermal Conductivity W/mK λ10, dry

1.11

0.48

0.31

0.48

1.11

0.48

1.11

0.48

Fire Resistance1
(Hours)

Reaction to Fire

Euro Class A1 (Non Combustible)

Sound reduction value2
(dB)

Sheer Bond Strength (N/mm2)

0.15

Durability to Freeze/Thaw

Recommended not to leave exposed

Greenbloc ultra

The UKs first cement-free ultra-low carbon dense concrete block. Powered by Cemfree, an ultra-low carbon alternative to traditional cement. Low C02. No compromise.

High density load bearing

Sustainable aggregates

H.S.E

British standards

Wide range of usage

Delivery

Calculate your carbon saving by choosing Greenbloc

How many concrete blocks do you need?

Enter your own amount below:

Turning off

low energy lights for a year

From London to New York

times in a plane

Driving a petrol car

miles

Equivalent of planting

trees per year

Ultra-low carbon blocks with up to 80% lower eCO2**

Supplying builders merchants & large construction projects

Modulite medium dense

Concrete common concrete blocks

Greenbloc ultra

Hollow dense concrete blocks

Greenbloc ultra

The UKs first cement-free ultra-low carbon dense concrete block. Powered by Cemfree, an ultra-low carbon alternative to traditional cement. Low C02. No compromise.

High density load bearing

Sustainable aggregates

H.S.E

British standards

Wide range of usage

Delivery

Calculate your carbon saving by choosing Greenbloc

How many concrete blocks do you need?

Enter your own amount below:

Turning off low energy lights for a year

From London to New York times in a plane

Driving a petrol car miles

Equivalent of planting trees per year

Ultra-low carbon blocks with up to 80% lower eCO2**

Supplying builders merchants & large construction projects

Other Concrete Blocks

Modulite medium dense

Concrete common concrete blocks

Greenbloc ultra

Hollow dense concrete blocks

Turning off

low energy lights for a year

From London to New York

times in a plane

Driving a petrol car

miles

Equivalent of planting

trees per year