Flat hollow blocks

Blocks for additionally insulated, load-bearing basement, exterior and interior walls / Approval Z-17.1-797

 

KLB flat hollow blocks are the reasonable complements to the highly thermally insulating KLB flat blocks SW1 and W3. They are used as additionally insulated back wall shell or as load-bearing basement, exterior or interior walls, in particular for components which have no significant requirements regarding heat and/or sound.

 

KLB flat hollow blocks are manufactured in accordance with DIN V 18151-100 and are approved by the building authority, Approval Z-17.1-842 und Z-17.1-844

  • 17,5 cm
  • 24,0 cm
  • 30,0 cm
  • 36,5 cm

Type of block

KLB flat hollow blocks - Z-17.1-797

Wall thickness

cm

17,5

Format

 

12 DF

Length

mm

497

Width

mm

175

Height

mm

249

Number of chamber/slot rows

 

1

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

4 (5,0)

6 (7,5)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,8

1,0

Character. Value of compressive strength fk

MN/m²

1,6

2,5

3,2

Gross density class

 

0,8

0,9

1,2

Calculated weight with DBM

kN/m³

9,0

10,0

13,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,34

0,37

0,6

Thermal resistance  RT with DBM

m²K/W

3,59

3,54

3,36

U-value*) with DBM

W/m²K

0,28

0,28

0,30

Heat storage capacity

 

F 120-A

Fire wall, plastered once

 

no

no

no

Fire wall, plastered twice

 

no

no

no

Block requirements per m²

piece

8

8

8

Block requirements per m³

piece

46

46

46

Mortar requirements per m²

Liter

2,6

2,6

2,6

Mortar requirements per m³

Liter

12

12

12

Working time reference value full masonry

h/m³(h/m²)

(0,42)

(0,42)

(0,45)

Working time reference value categorised. Masonry

h/m³(h/m²)

(0,47)

(0,47)

(0,50)

Packet/palette content

piece

50/60

50/60

50/60

Average weight per block 1)

kg

20

22

26

Article number 40391070

 

34508

34515

34522

Main field of application 2)

 

3, 4

3, 4

3, 4

Type of block

KLB flat hollow blocks - Z-17.1-797

Wall thickness

cm

24,0

Format

 

16 DF

8 DF

Length

mm

497

247

Width

mm

240

240

Height

mm

249

249

Number of chamber/slot rows

 

3

2

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

4 (5,0)

2 (2,5)

4 (5,0)

6 (7,5)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,8

0,5

0,8

1,0

Character. Value of compressive strength fk

MN/m²

1,6

2,5

1,6

2,5

3,2

Gross density class

 

0,8

0,9

0,8

0,9

1,2

Calculated weight with DBM

kN/m³

9,0

10,0

9

10

13,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,31

0,34

0,31

0,34

0,53

Thermal resistance  RT with DBM

m²K/W

3,84

3,78

3,84

3,78

3,52

U-value*) with DBM

W/m²K

0,26

0,26

0,26

0,26

0,28

Heat storage capacity

 

F 180-A

Fire wall, plastered once

 

yes

yes

yes

yes

yes

Fire wall, plastered twice

 

yes

yes

yes

yes

yes

Block requirements per m²

piece

8

8

16

16

16

Block requirements per m³

piece

33

33

66

66

66

Mortar requirements per m²

Liter

3,0

3,0

3,0

3,0

3,0

Mortar requirements per m³

Liter

12

12

12

12

12

Working time reference value full masonry

h/m³(h/m²)

2,00

2,15

2,00

2,05

2,20

Working time reference value categorised. Masonry

h/m³(h/m²)

2,20

2,35

2,20

2,25

2,40

Packet/palette content

piece

40

40

80

80

80

Average weight per block 1)

kg

27

31

14

15

18

Article number 40391070

 

34539

34546

36052

36212

36359

Main field of application 2)

 

3, 4

3, 4

3, 4

3, 4

3, 4

Type of block

KLB flat hollow blocks - Z-17.1-797

Wall thickness

cm

30,0

Format

 

20 DF

10 DF

Length

mm

497

247

Width

mm

300

300

Height

mm

249

249

Number of chamber/slot rows

 

3

3

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

2 (2,5)

4 (5,0)

6 (7,5)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,5

0,8

1,0

Character. Value of compressive strength fk

MN/m²

1,6

1,6

2,5

3,2

Gross density class

 

0,8

0,8

0,9

1,2

Calculated weight with DBM

kN/m³

9,0

9,0

10,0

13,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,31

0,31

0,34

0,53

Thermal resistance  RT with DBM

m²K/W

4,04

4,04

3,95

3,64

U-value*) with DBM

W/m²K

0,25

0,25

0,25

0,28

Heat storage capacity

 

F 180-A

Fire wall, plastered once

 

yes

yes

yes

yes

Fire wall, plastered twice

 

yes

yes

yes

yes

Block requirements per m²

piece

8

16

16

16

Block requirements per m³

piece

27

54

54

54

Mortar requirements per m²

Liter

3,6

3,6

3,6

3,6

Mortar requirements per m³

Liter

12

12

12

12

Working time reference value full masonry

h/m³(h/m²)

2,00

1,75

1,75

1,95

Working time reference value categorised. Masonry

h/m³(h/m²)

2,40

2,00

2,00

2,20

Packet/palette content

piece

30

60

60

60

Average weight per block 1)

kg

34

17

19

22

Article number 40391070

 

36090

36076

36236

36366

Main field of application 2)

 

1, 3

1, 3

1, 3

1, 3

Type of block

KLB flat hollow blocks - Z-17.1-797

Wall thickness

cm

36,5

Format

 

12 DF

Length

mm

247

Width

mm

365

Height

mm

249

Number of chamber/slot rows

 

3

Tensile strength class (medium tensile strength)

(N/mm²)

2 (2,5)

4 (5,0)

6 (7,5)

Compressive stress σ0 m. DBM

MN/m²

0,5

0,8

1,0

Character. Value of compressive strength fk

MN/m²

1,6

2,5

3,2

Gross density class

 

0,8

0,9

1,2

Calculated weight with DBM

kN/m³

9,0

10,0

13,0

Coefficient of thermal conductivity λR with DBM

W/mK

0,34

0,37

0,53

Thermal resistance  RT with DBM

m²K/W

4,14

4,06

3,76

U-value*) with DBM

W/m²K

0,24

0,25

0,27

Heat storage capacity

 

F 180-A

Fire wall, plastered once

 

yes

yes

yes

Fire wall, plastered twice

 

yes

yes

yes

Block requirements per m²

piece

16

16

16

Block requirements per m³

piece

44

44

44

Mortar requirements per m²

Liter

4,5

4,5

4,5

Mortar requirements per m³

Liter

12

12

12

Working time reference value full masonry

h/m³(h/m²)

1,65

1,80

2,00

Working time reference value categorised. Masonry

h/m³(h/m²)

1,90

2,10

2,30

Packet/palette content

piece

60

60

60

Average weight per block 1)

kg

21

23

27

Article number 40391070

 

36113

36243

36373

Main field of application 2)

 

1, 3

1, 3

1, 3

*) plastered, inside with 15 mm gypsum light-weight plaster λR = 0.35 W/mK, outside with 20 mm mineral fibre light-weight plaster λR = 0.31 W/mK

- not applicable, not standard

1) higher weight possible depending on weather

2) 1 = basement masonry, 2 = exterior masonry, 3 = back-up masonry, 4 = interior masonry, 5 = light-weight separation wall, 6 = statically stressed masonry, 7 = sound insulating masonry, with addition “x” = supplementary block

3) time for m² with offset aid, as blocks are > 25 kg