Flat full blocks and KLB flat sound insulation blocks

Small-sized, solid supplementary blocks, suitable for sound-insulating masonry

KLB flat full blocks are small-sized, solid supplementary blocks, which are thermally adapted to the KLB flat blocks. The blocks have a height of 124 mm and a length of 249 mm. The fronts are, in contrast to the KLB flat blocks with their dovetailing in the butt joint, smooth and therefore have to be processed in the horizontal joint and butt joint with thin-bed mortar.

The 8 DF flat solid blocks alone (flat building panels height 249 mm, length 497 mm, thickness 115 mm) have simple dovetailing, with the groove on one side and the tongue on the other side but they do not have to be mortared. The flat solid blocks are used for any partitions in the KLB flat block masonry. Due to the different formats all masonry thicknesses can be supplemented. The calculated values of the heat conductivity numbers correspond to the compliance certificate ÜZ WBK1-2005/0510.

KLB flat sound insulation blocks correspond in their dimensions to the KLB flat solid stones. The processing also includes mortaring the load-bearing joints and butt joints with thin-bed mortar. In particular, these solid blocks are used for any partitions or additions in the sound-insulating masonry.

11,5 cm
17,5 cm
24,0 cm
30,0 cm
36,5 cm

Type of block	KLB-Flat full blocks Z-17.1-778
Wall thickness	cm	11,5
Format		2 DF	8 DF N+F
Length	mm	249	497
Width	mm	115	115
Height	mm	124	249
Number of chamber/slot rows		-	-
Tensile strength class (medium tensile strength)	(N/mm²)	2 (2,5) 4(5,0)	2 (2,5) 4 (5,0) 2 (2,5)
Compressive stress σ₀ m. DBM	MN/m²	0,6 0,9	0,6 0,9 0,6
Character. Value of compressive strength f_k	MN/m²	1,5 2,8	1,5 2,8 1,5
Gross density class		0,60 0,80	0,60 0,80 1,0
Calculated weight with DBM	kN/m³	7 9	7 9 11
Coefficient of thermal conductivity λ_R with DBM	W/mK	0,15 0,21	0,15 0,21 0,27
Thermal resistance R_T with DBM	m²K/W	1,11 0,89	1,11 0,89 0,77
U-value*) inner wall with DBM	W/m²K	0,90 1,12	0,90 1,12 0,77
U-value*) outer wall with DBM		- -	- - -
Sound R_w *) inner wall single shell	dB	37,6 40,4	37,6 40,4 43,0
Sound R_w **) inner wall two shells	dB	- -	- - -
Fire resistance, α₂ = 1.0, plastered		F180-A	F180-A
Fire wall, plastered once		no	no
Fire wall, plastered twice		no	no
Block requirements per m²	piece	32 32	8 8 8
Block requirements per m³	piece	278 278	- - -
Mortar requirements per m²	Liter	- -	2,0 2,0 2,0
Mortar requirements per m³	Liter	36 36	- - -
Working time reference value full masonry	h/m³(h/m²)	(0,60) (0,70)	(0,40) (0,40) (0,44)
Working time reference value categorised. Masonry	h/m³(h/m²)	(0,60) (0,70)	(0,45) (0,45) (0,49)
Packet/palette content	piece	320 320	80 80 80
Average weight per block ¹)	kg	2,6 3,2	10,1 12,9 16,1
Article number 40391070		37349 35628	37363 35314 36618
Main field of application ²)		5, x 5, x	5, x 5, x 5, x

Type of block	KLB-Flat full blocks Z-17.1-778
Wall thickness	cm	17,5
Format		3 DF
Length	mm	249
Width	mm	175
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	2 (2,5) 4(5,0)
Compressive stress σ₀ m. DBM	MN/m²	0,6 0,9
Character. Value of compressive strength f_k	MN/m²	1,5 2,8
Gross density class		0,60 0,80
Calculated weight with DBM	kN/m³	7 9
Coefficient of thermal conductivity λ_R with DBM	W/mK	0,15 0,21
Thermal resistance R_T with DBM	m²K/W	1,51 1,18
U-value*) inner wall with DBM	W/m²K	0,65 0,85
U-value*) outer wall with DBM		0,24 0,26
Sound R_w *) inner wall single shell	dB	42,1 47,2
Sound R_w **) inner wall two shells	dB	62 65
Fire resistance, α₂ = 1.0, plastered		F120-A
Fire wall, plastered once		no yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32 32
Block requirements per m³	piece	183 183
Mortar requirements per m²	Liter	- -
Mortar requirements per m³	Liter	36 36
Working time reference value full masonry	h/m³(h/m²)	(0,40) (0,42)
Working time reference value categorised. Masonry	h/m³(h/m²)	(0,45) (0,47)
Packet/palette content	piece	200/224 200/224
Average weight per block ¹)	kg	3,9 5,0
Article number 40391070		37387 35666
Main field of application ²)		5, x 5, x

Type of block	KLB-Flat full blocks Z-17.1-778
Wall thickness	cm	24,0
Format		6 DF
Length	mm	365
Width	mm	240
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	2 (2,5) 4(5,0)
Compressive stress σ₀ m. DBM	MN/m²	0,6 0,9
Character. Value of compressive strength f_k	MN/m²	1,5 2,8
Gross density class		0,60 0,80
Calculated weight with DBM	kN/m³	7 9
Coefficient of thermal conductivity λ_R with DBM	W/mK	0,15 0,21
Thermal resistance R_T with DBM	m²K/W	1,95 1,49
U-value*) inner wall with DBM	W/m²K	0,61 0,67
U-value*) outer wall with DBM		0,21 0,24
Sound R_w *) inner wall single shell	dB	47,7 50,9
Sound R_w **) inner wall two shells	dB	66 69
Fire resistance, α₂ = 1.0, plastered		F180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	22 22
Block requirements per m³	piece	91 91
Mortar requirements per m²	Liter	- -
Mortar requirements per m³	Liter	33 33
Working time reference value full masonry	h/m³(h/m²)	(3,35) (3,40)
Working time reference value categorised. Masonry	h/m³(h/m²)	(3,70) (3,75)
Packet/palette content	piece	105 105
Average weight per block ¹)	kg	7,8 10,0
Article number 40391070		37417 35765
Main field of application ²)		5, x 5, x

Type of block	KLB-Flat full blocks Z-17.1-778
Wall thickness	cm	30
Format		5 DF
Length	mm	249
Width	mm	300
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	2 (2,5) 4(5,0)
Compressive stress σ₀ m. DBM	MN/m²	0,6 0,9
Character. Value of compressive strength f_k	MN/m²	1,5 2,8
Gross density class		0,60 0,80
Calculated weight with DBM	kN/m³	7 9
Coefficient of thermal conductivity λ_R with DBM	W/mK	0,15 0,21
Thermal resistance R_T with DBM	m²K/W	2,35 1,77
U-value*) inner wall with DBM	W/m²K	0,43 0,56
U-value*) outer wall with DBM		0,2 0,22
Sound R_w *) inner wall single shell	dB	50,4 53,6
Sound R_w **) inner wall two shells	dB	- -
Fire resistance, α₂ = 1.0, plastered		F180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32 32
Block requirements per m³	piece	107 107
Mortar requirements per m²	Liter	- -
Mortar requirements per m³	Liter	36 36
Working time reference value full masonry	h/m³(h/m²)	(0,70) (0,80)
Working time reference value categorised. Masonry	h/m³(h/m²)	(0,70) (0,80)
Packet/palette content	piece	120 120
Average weight per block ¹)	kg	6,6 8,5
Article number 40391070		37448 35710
Main field of application ²)		5, x 5, x

Type of block	KLB-Flat full blocks Z-17.1-778
Wall thickness	cm	36,5
Format		6 DF
Length	mm	249
Width	mm	365
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	2 (2,5) 4(5,0)
Compressive stress σ₀ m. DBM	MN/m²	0,6 0,9
Character. Value of compressive strength f_k	MN/m²	1,5 2,8
Gross density class		0,60 0,80
Calculated weight with DBM	kN/m³	7 9
Coefficient of thermal conductivity λ_R with DBM	W/mK	0,15 0,21
Thermal resistance R_T with DBM	m²K/W	2,78 2,08
U-value*) inner wall with DBM	W/m²K	0,36 0,48
U-value*) outer wall with DBM		0,18 0,21
Sound R_w *) inner wall single shell	dB	52,8 56,1
Sound R_w **) inner wall two shells	dB	- -
Fire resistance, α₂ = 1.0, plastered		F180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32 32
Block requirements per m³	piece	105 105
Mortar requirements per m²	Liter	- -
Mortar requirements per m³	Liter	36 36
Working time reference value full masonry	h/m³(h/m²)	(2,90) (3,20)
Working time reference value categorised. Masonry	h/m³(h/m²)	(2,95) (3,25)
Packet/palette content	piece	105 105
Average weight per block ¹)	kg	8,0 10,3
Article number 40391070		37479 35819
Main field of application ²)		5, x 5, x

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

11,5 cm
17,5 cm
24,0 cm
30,0 cm
36,5 cm

Type of block	KLB flat sound insulation blocks - Z-17.1-778
Wall thickness	cm	11,5
Format		2 DF	8 DF N+F
Length	mm	249	497
Width	mm	115	115
Height	mm	124	249
Number of chamber/slot rows		-	-
Tensile strength class (medium tensile strength)	(N/mm²)	20 (25)	12 (15)
Compressive stress σ₀ m. DBM	MN/m²	3,2	2,2
Character. Value of compressive strength f_k	MN/m²	10,0	6,9
Gross density class		2,0	2,0
Calculated weight with DBM	kN/m³	20	20
Coefficient of thermal conductivity λ_R with DBM	W/mK	1,20	1,20
Thermal resistance R_T with DBM	m²K/W	0,44	0,44
U-value*) inner wall with DBM	W/m²K	2,26	2,26
U-value*) outer wall with DBM		-	-
Sound R_w *) inner wall single shell	dB	53,3	53,3
Sound R_w **) inner wall two shells	dB	71	71
Fire resistance, α₂ = 1.0, plastered		-	-
Fire wall, plastered once		no	no
Fire wall, plastered twice		no	no
Block requirements per m²	piece	32	8
Block requirements per m³	piece	278	46
Mortar requirements per m²	Liter	5,2	2,6
Mortar requirements per m³	Liter	36	30
Working time reference value full masonry	h/m³(h/m²)	3,45	3,45
Working time reference value categorised. Masonry	h/m³(h/m²)	3,80	3,80
Packet/palette content	piece	256	64
Average weight per block ¹)	kg	6,9	28,3
Article number 40391070		37356	37370
Main field of application ²)		4, x	4, x

Type of block	KLB flat sound insulation blocks - Z-17.1-778
Wall thickness	cm	17,5
Format		3 DF
Length	mm	249
Width	mm	175
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	20 (15)
Compressive stress σ₀ m. DBM	MN/m²	2,2
Character. Value of compressive strength f_k	MN/m²	6,9
Gross density class		2,0
Calculated weight with DBM	kN/m³	20
Coefficient of thermal conductivity λ_R with DBM	W/mK	1,20
Thermal resistance R_T with DBM	m²K/W	0,49
U-value*) inner wall with DBM	W/m²K	2,03
U-value*) outer wall with DBM		0,31
Sound R_w *) inner wall single shell	dB	58,5
Sound R_w **) inner wall two shells	dB	74
Fire resistance, α₂ = 1.0, plastered		F 120-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32
Block requirements per m³	piece	183
Mortar requirements per m²	Liter	7,9
Mortar requirements per m³	Liter	36
Working time reference value full masonry	h/m³(h/m²)	(0,60)
Working time reference value categorised. Masonry	h/m³(h/m²)	(0,70)
Packet/palette content	piece	160
Average weight per block ¹)	kg	10,7
Article number 40391070		37400
Main field of application ²)		4, x

Type of block	KLB flat sound insulation blocks - Z-17.1-778
Wall thickness	cm	24,0
Format		6 DF
Length	mm	365
Width	mm	240
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	20 (15)
Compressive stress σ₀ m. DBM	MN/m²	2,2
Character. Value of compressive strength f_k	MN/m²	6,9
Gross density class		2,0
Calculated weight with DBM	kN/m³	20
Coefficient of thermal conductivity λ_R with DBM	W/mK	1,20
Thermal resistance R_T with DBM	m²K/W	0,55
U-value*) inner wall with DBM	W/m²K	1,83
U-value*) outer wall with DBM		0,28
Sound R_w *) inner wall single shell	dB	62,5
Sound R_w **) inner wall two shells	dB	77
Fire resistance, α₂ = 1.0, plastered		F 180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	22
Block requirements per m³	piece	91
Mortar requirements per m²	Liter	9,9
Mortar requirements per m³	Liter	33
Working time reference value full masonry	h/m³(h/m²)	3,60
Working time reference value categorised. Masonry	h/m³(h/m²)	3,95
Packet/palette content	piece	84
Average weight per block ¹)	kg	21,5
Article number 40391070		37561
Main field of application ²)		4, x

Type of block	KLB flat sound insulation blocks - Z-17.1-778
Wall thickness	cm	30,0
Format		5 DF
Length	mm	249
Width	mm	300
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	12 (15)
Compressive stress σ₀ m. DBM	MN/m²	2,2
Character. Value of compressive strength f_k	MN/m²	6,9
Gross density class		2,0
Calculated weight with DBM	kN/m³	20
Coefficient of thermal conductivity λ_R with DBM	W/mK	1,20
Thermal resistance R_T with DBM	m²K/W	0,60
U-value*) inner wall with DBM	W/m²K	1,68
U-value*) outer wall with DBM		0,30
Sound R_w *) inner wall single shell	dB	63,4
Sound R_w **) inner wall two shells	dB	-
Fire resistance, α₂ = 1.0, plastered		F 180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32
Block requirements per m³	piece	107
Mortar requirements per m²	Liter	13,5
Mortar requirements per m³	Liter	36
Working time reference value full masonry	h/m³(h/m²)	(0,70)
Working time reference value categorised. Masonry	h/m³(h/m²)	(0,80)
Packet/palette content	piece	96
Average weight per block ¹)	kg	11,0
Article number 40391070		37462
Main field of application ²)		4, x

Type of block	KLB flat sound insulation blocks - Z-17.1-778
Wall thickness	cm	36,5
Format		6 DF
Length	mm	249
Width	mm	365
Height	mm	124
Number of chamber/slot rows		-
Tensile strength class (medium tensile strength)	(N/mm²)	12 (15)
Compressive stress σ₀ m. DBM	MN/m²	2,2
Character. Value of compressive strength f_k	MN/m²	6,9
Gross density class		2,0
Calculated weight with DBM	kN/m³	20
Coefficient of thermal conductivity λ_R with DBM	W/mK	1,20
Thermal resistance R_T with DBM	m²K/W	0,65
U-value*) inner wall with DBM	W/m²K	1,54
U-value*) outer wall with DBM		0,30
Sound R_w *) inner wall single shell	dB	66
Sound R_w **) inner wall two shells	dB	-
Fire resistance, α₂ = 1.0, plastered		F 180-A
Fire wall, plastered once		yes
Fire wall, plastered twice		yes
Block requirements per m²	piece	32
Block requirements per m³	piece	88
Mortar requirements per m²	Liter	16,4
Mortar requirements per m³	Liter	36
Working time reference value full masonry	h/m³(h/m²)	3,25
Working time reference value categorised. Masonry	h/m³(h/m²)	3,55
Packet/palette content	piece	84
Average weight per block ¹)	kg	22,4
Article number 40391070		37493
Main field of application ²)		4, x

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

- not applicable, not standard

¹) higher weight possible depending on weather

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

Flat full blocks and KLB flat sound insulation blocks

Data