KLB flat blocks W3
Modified hollow blocks for high requirements for thermal insulation / Approval Z-17.1-766
KLB flat blocks W3 are equivalent to thermally-modified hollow blocks. These thermal insulation blocks have several chambers with only narrow chamber widths and are also blocks for use where there are high thermal insulation requirements. KLB flat blocks W3 are very well suited for single-shell or multi-shell masonry with additional dampening. Simultaneously these blocks can also be used as basement exterior walls or load-bearing interior walls . Their processing is done as with KLB flat blocks SW1 with the same thin-bed mortar, which is supplied with all KLB flat blocks in sufficient quantity with all deliveries.
They have the building approval Z-17.1-766, which among others confirms the special thermal insulation properties of the blocks.
- W3 - 17,5 cm
- W3 - 24,0 cm
- W3 - 30,0 cm
- W3 - 36,5 cm
|
Block variety/Block type |
KLB flat blocks W3 - Z-17.1-766 |
|||
|---|---|---|---|---|
|
Wall thickness |
cm |
17,5 |
||
|
Format |
12 DF |
|||
|
Length |
mm |
497 |
||
|
Width |
mm |
175 |
||
|
Height |
mm |
249 |
||
|
Number of chamber/slot rows |
3 |
|||
|
Tensile strength class (medium tensile strength) |
(N/mm²) |
2 (2,5) |
4 (5,0) |
|
|
Compressive stress σ0 m. DBM "L" |
MN/m² |
0,5 |
0,8 |
|
|
Character. Value of compressive strength fk |
MN/m² |
1,3 |
2,1 |
|
|
Gross density class |
0,50 |
0,60 |
||
|
Calculated weight with DBM "L" |
kN/m³ |
6,0 |
7,0 |
|
|
Coefficient of thermal conductivity λR with DBM "L" |
W/mK |
0,13 |
0,16 |
|
|
Thermal resistance RT with DBM |
m²K/W |
1,62 |
1,37 |
|
|
U-value*) with DBM |
W/m²K |
0,62 |
0,73 |
|
|
Heat storage capacity |
kJ/m²K |
143 |
155 |
|
|
Cool down time |
h |
43 |
52 |
|
|
Fire resistance, α2 = 1.0, plastered |
F 30-A |
|||
|
Fire wall, plastered once |
no |
|||
|
Fire wall, plastered twice |
no |
|||
|
Block requirements per m² |
piece |
8 |
8 |
|
|
Block requirements per m³ |
piece |
46 |
46 |
|
|
Mortar requirements per m² |
Liter |
2,6 |
2,6 |
|
|
Mortar requirements per m³ |
Liter |
12 |
12 |
|
|
Working time reference value full masonry |
h/m³(h/m²) |
(0,40) |
(0,45) |
|
|
Working time reference value categorised. Masonry |
h/m³(h/m²) |
(0,40) |
(0,45) |
|
|
Packet/palette content |
piece |
60 |
60 |
|
|
Average weight per block 1) |
kg |
14 |
17 |
|
|
Article number 40391070 |
35406 |
35925 |
||
|
Main field of application 2) |
2, 3, 4 |
2, 3, 4 |
||
|
Block variety/Block type |
KLB flat blocks W3 - Z-17.1-766 |
||
|---|---|---|---|
|
Wall thickness |
cm |
24,0 |
|
|
Format |
16 DF |
||
|
Length |
mm |
497 |
|
|
Width |
mm |
240 |
|
|
Height |
mm |
249 |
|
|
Number of chamber/slot rows |
4 |
||
|
Tensile strength class (medium tensile strength) |
(N/mm²) |
2 (2,5) |
4 (5,0) |
|
Compressive stress σ0 m. DBM "L" |
MN/m² |
0,5 |
0,8 |
|
Character. Value of compressive strength fk |
MN/m² |
1,3 |
2,1 |
|
Gross density class |
0,50 |
0,60 |
|
|
Calculated weight with DBM "L" |
kN/m³ |
6,0 |
7,0 |
|
Coefficient of thermal conductivity λR with DBM "L" |
W/mK |
0,13 |
0,16 |
|
Thermal resistance RT with DBM |
m²K/W |
2,12 |
1,78 |
|
U-value*) with DBM |
W/m²K |
0,47 |
0,56 |
|
Heat storage capacity |
kJ/m²K |
182 |
200 |
|
Cool down time |
h |
99 |
89 |
|
Fire resistance, α2 = 1.0, plastered |
F 30-A |
||
|
Fire wall, plastered once |
no |
||
|
Fire wall, plastered twice |
no |
||
|
Block requirements per m² |
piece |
8 |
8 |
|
Block requirements per m³ |
piece |
33 |
33 |
|
Mortar requirements per m² |
Liter |
3,0 |
3,0 |
|
Mortar requirements per m³ |
Liter |
12 |
12 |
|
Working time reference value full masonry |
h/m³(h/m²) |
1,75 |
1,80 |
|
Working time reference value categorised. Masonry |
h/m³(h/m²) |
1,95 |
2,00 |
|
Packet/palette content |
piece |
48 |
48 |
|
Average weight per block 1) |
kg |
19 |
23 |
|
Article number 40391070 |
35444 |
35956 |
|
|
Main field of application 2) |
2, 3, 4 |
2, 3, 4 |
|
|
Block variety/Block type |
KLB flat blocks W3 - Z-17.1-766 |
||
|---|---|---|---|
|
Wall thickness |
cm |
30,0 |
30,0 |
|
Format |
20 DF |
10 DF |
|
|
Length |
mm |
497 |
247 |
|
Width |
mm |
300 |
300 |
|
Height |
mm |
249 |
249 |
|
Number of chamber/slot rows |
5 |
5 |
|
|
Tensile strength class (medium tensile strength) |
(N/mm²) |
2 (2,5) |
4 (5,0) |
|
Compressive stress σ0 m. DBM "L" |
MN/m² |
0,5 |
0,8 |
|
Character. Value of compressive strength fk |
MN/m² |
1,3 |
2,1 |
|
Gross density class |
0,45 |
0,60 |
|
|
Calculated weight with DBM "L" |
kN/m³ |
5,5 |
7,0 |
|
Coefficient of thermal conductivity λR with DBM "L" |
W/mK |
0,12 |
0,16 |
|
Thermal resistance RT with DBM |
m²K/W |
2,78 |
2,15 |
|
U-value*) with DBM |
W/m²K |
0,36 |
0,46 |
|
Heat storage capacity |
kJ/m²K |
203 |
248 |
|
Cool down time |
h |
147 |
136 |
|
Fire resistance, α2 = 1.0, plastered |
F 90-A |
||
|
Fire wall, plastered once |
no |
||
|
Fire wall, plastered twice |
- |
||
|
Block requirements per m² |
piece |
8 |
16 |
|
Block requirements per m³ |
piece |
27 |
54 |
|
Mortar requirements per m² |
Liter |
3,6 |
3,6 |
|
Mortar requirements per m³ |
Liter |
12 |
12 |
|
Working time reference value full masonry |
h/m³(h/m²) |
1,45 |
1,70 |
|
Working time reference value categorised. Masonry |
h/m³(h/m²) |
1,60 |
1,95 |
|
Packet/palette content |
piece |
36 |
72 |
|
Average weight per block 1) |
kg |
22 |
14 |
|
Article number 40391070 |
35420 |
35963 |
|
|
Main field of application 2) |
2, 3 |
2, 3 |
|
|
Block variety/Block type |
KLB flat blocks W3 - Z-17.1-766 |
||||
|---|---|---|---|---|---|
|
Wall thickness |
cm |
36,5 |
|||
|
Format |
12 DF |
||||
|
Length |
mm |
247 |
|||
|
Width |
mm |
365 |
|||
|
Height |
mm |
249 |
|||
|
Number of chamber/slot rows |
6 |
||||
|
Tensile strength class (medium tensile strength) |
(N/mm²) |
2 (2,5) |
2 (2,5) |
4 (5,0) |
|
|
Compressive stress σ0 m. DBM "L" |
MN/m² |
0,5 |
0,5 |
0,8 |
|
|
Character. Value of compressive strength fk |
MN/m² |
1,3 |
1,3 |
2,1 |
|
|
Gross density class |
0,45 |
0,55 |
0,60 |
||
|
Calculated weight with DBM "L" |
kN/m³ |
5,5 |
6,5 |
7,0 |
|
|
Coefficient of thermal conductivity λR with DBM "L" |
W/mK |
0,12 |
0,14 |
0,16 |
|
|
Thermal resistance RT with DBM |
m²K/W |
3,32 |
2,89 |
2,56 |
|
|
U-value*) with DBM |
W/m²K |
0,30 |
0,35 |
0,39 |
|
|
Heat storage capacity |
kJ/m²K |
239 |
271 |
294 |
|
|
Cool down time |
h |
209 |
208 |
195 |
|
|
Fire resistance, α2 = 1.0, plastered |
F 90-A |
||||
|
Fire wall, plastered once |
no |
||||
|
Fire wall, plastered twice |
- |
||||
|
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) |
1,60 |
1,65 |
1,65 |
|
|
Working time reference value categorised. Masonry |
h/m³(h/m²) |
1,85 |
1,90 |
1,90 |
|
|
Packet/palette content |
piece |
60 |
60 |
60 |
|
|
Average weight per block 1) |
kg |
13 |
15 |
17 |
|
|
Article number 40391070 |
35895 |
35598 |
35000 |
||
|
Main field of application 2) |
2, 3 |
2, 3 |
2, 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