DE4333981C2 - Soundproofing block bricks - Google Patents

Description

The present invention relates to a sound insulation Block bricks according to the preamble of claim 1. Ein conventional soundproofing brick is from EP-A2-0 378 217 known. This well-known brick comes with a variety of vertical filling channels, each through intermediate webs are separated. The filling channels are poured with concrete or mortar for sound insulation. However, must when building up such a soundproof brick wall Every single horizontal row of bricks depends on the design be poured out and at the same time a 12 mm thick bed joint be raised. Such a procedure is relative time consuming and therefore expensive.

Bricks ground on both sides, so-called face bricks generally known (see for example the company lettering "Schlagmann POROTON: Planned brick - the revolution in Brick construction "). However, so far it has not been ground flat Noise protection brick has been proposed that is poured. This is due to the fact that a single Pour every horizontal row of bricks with concrete or mortar the advantage of the face brick system, namely high precision the wall due to a layer of mortar only 1 mm thick power. Would namely if using tar brick? single row of bricks are poured out, so the  Surface of this row of bricks then again by everyone Mortar residues are freed to the 1 mm thick mortar layer guarantee. However, this is not economical feasible.

Basically, there are also components with vertically continuous Filling channels known. These are so-called formwork blocks (cf. Masonry calendar 1992 by Ernst & Sohn, pages 261 ff. or DE 14 09 139 C2). However, these are Formwork blocks are not about bricks, but about a special design of masonry. These known formwork blocks are made Bulky-porous lightweight concrete or made from normal concrete and are also called "lost formwork", since these do not contribute to the stability of the wall. This will determined solely by the filled concrete. They too Formwork blocks in the association laid dry and after reaching a certain wall section height filled with concrete, whereby the resulting vertical concrete columns a cross flow of the concrete over existing in the hollow bodies side openings are connected. Such However, formwork blocks are neither bricks nor Soundproofing brick. The filling channels form a composite. In this composite is only supported by the high-shrinkage flow concrete.

A soundproofing block brick according to the preamble of the claim 1 is known from DE-OS 41 03 754. Be with this brick the filling channels are filled with insertion stones that are wedged become.

It is the problem underlying the present invention (Task) to create a noise protection tarpaulin that does not additional insertion stones required.  

This object is achieved by the features of patent claim 1 solved.

The two sides of the tile are plane-parallel ground. This is a soundproofing tile with a extremely high accuracy created, in particular the largest possible when using the thin-bed mortar process Accuracy allowed. In this case, the mortar joints have one Thickness of only 1 mm, since the thin bed mortar is dipped by Brick is applied in the mortar pan on the undersides.

The toothing on the end faces of the brick is as Flat teeth formed. Through such an interlocking is a brick created on the one hand on the end faces does not have to be provided with mortar, since the toothing already ensures the required stability of the wall. On the other hand, a brick can be made according to the invention Wall ends, such as B. door openings or the like, without further Use measures because the flat toothing of the brick easily plastered due to their low tooth depth can be. The brick according to the invention therefore requires no special keystones, which when using deeper gears are always required.

According to another feature of the invention, the total Cross-sectional area of all filling channels between 50% and 55% of the Surface of one side of the tile. By this feature are filling channels with a high volume created ensure excellent soundproofing properties. At the same time there is a high pressure resistance of the wall guaranteed by the brick portion, but not by the shrinkage-prone filling concrete is determined, d. H. it only the brick supports, but not the concrete.  

Finally, the wall width is between a filling channel and one end half the width of the web between two filling channels and the filling channels are so in Brick formed that this with an offset masonry the brick runs vertically, continuously, floor-to-ceiling Form cavities that have a constant backfill cross section exhibit. This feature of the invention is the first Soundproofing block brick created with one Soundproof wall first completely up to the floor level in the Thin bed process can be established, whereupon subsequently it is filled with concrete or mortar. According to the invention can even after walling up the soundproofing wall Formwork or a reinforced concrete element ceiling on both sides put on the apartment partition, so that in one operation Filling the soundproofing wall with concrete and applying the In-situ concrete portion can take place on the element ceiling. Hereby is the amount of work required to create a soundproof wall significantly reduced. At the same time, leakage can occur storey-high filling channels do not occur because in the case of a Brick crack of the band above and below it brick according to the invention this by the good adhesion of Thin bed mortar joint prevented. If you compare them with bricks time required according to the invention to create a Cubic meter wall of 1.8 hours with the time of 2.7 hours, which is required with conventional soundproofing bricks, so there is a time reduction of about 33%. At the same time however the full resilience of the not yet cast Soundproofing wall guaranteed solely by the brick.

According to the invention, the arrangement of the vertical, continuous filling channels ensures that neither the volume of the filling channel nor the volume of the brick is "given away" in the case of the bricks lying on top of one another, since only vertical cavities are present in the vertical direction and only brick material lies on top of one another in the vertical direction. This is not the case with conventional soundproofing bricks, since there are crossing points between the webs that separate the filling channels when the brickwork is offset. Thus, according to the invention, an excellent strength of the wall and a high sound insulation (R _{W, R} 55dB) are achieved. In addition, there are no differences in shape change between the brick outer wall and the apartment partition, since only the brick supports each of the two walls.

Finally, when using the thin bed mortar method ensures that the filling channels do not contain any mortar residues, whereby a good filling with concrete or mortar is achieved.

Since two vertical filling channels are provided in the brick two filling channels with one compared to the area of one Support side created very large cross-sectional area. In this way, a soundproofing brick is on the one hand excellent sound insulation and stability properties created. On the other hand, the brick wall can be very fill quickly and easily. In addition, the Divide brick according to this embodiment symmetrically so that easily two half-size bricks as leveling bricks can be created.

However, it should not be overlooked that even when used of "half" bricks always vertical filling channels with constant cross section. Even when creating Building corners with a butt joint are the continuous ones Filling channels with a constant cross-section guaranteed. Hereby there is an unimpeded fillability in the Corner area.  

If there is a toothing in the corner area between the individual In this case, rows of bricks may be desired be filled in unhindered. In the case of one toothed corner joint on the corner no filling channel with between Floor height and floor constant cross-section, but can be the filling channel created due to its large cross-section fill easily from the ceiling. also are none due to the large filling channel cross sections Vent channels required.

Advantageous embodiments of the invention are characterized by Subclaims marked.

A particularly good strength results when the wall width between a filling channel and an end face is the same size like the wall width between a filling channel and one Side surface.

The flat toothing of the brick according to the invention can be a Have a ratio of tooth depth to tooth width of approx. 1: 4. This creates a particularly flat toothing on the one hand, can be easily and easily plastered, on the other hand, the required tensile strength of the wall ensures. The good sound and Thermal insulation properties through this butt joint formation not worsened.

Finally, the invention also relates to a Method of creating a soundproof wall. Here are Brick according to one of claims 1 to 6, first under Use of the thin-bed mortar process up to the floor level bricked up. Then the filling channels with concrete filled. This is a very short time Sound barrier with the properties explained above  created that at the same time filled with the floor ceiling can be, the formwork elements or placed reinforced concrete element ceiling panels simultaneously as Filling scaffold can serve.

In a masonry according to claim 8, the existing bridges across the entire surface despite perforation used. This is a high compressive strength and low deformability of the masonry guaranteed.

The following is an embodiment of the present Invention with reference to the accompanying drawings purely by way of example explained. Show it:  

Figure 1 is a plan view of a brick according to the invention.

Figure 2 is a perspective view of brickwork according to the invention. and

Fig. 3 is a section along the line III-III in Fig. 2.

Fig. 1 shows a plan view of a plane-parallel ground support side 11 of a brick 10 according to the invention, which has two end faces 15 and 17 and two side surfaces 19 and 21 . Two filling channels 12 and 14 are arranged symmetrically in the brick and separated from one another by a web 16 . As shown in FIG. 1, both filling channels 12 and 14 have a rectangular cross section of the same size. The flat teeth provided on the end faces 15 and 17 of the brick 10 each consist of four teeth 18 which are arranged at the same distance. The toothing is formed on both end faces of the brick so that the teeth engage in one another without gaps when two bricks are put together. Circular through openings 22 are provided in side walls 20 and in web 16 , which are required for the proper production of the brick. However, these through channels are not intended for filling, ie they are not counted towards the fillable proportion of holes. The same applies to four through channels 24 with a rectangular cross section, which are arranged symmetrically in the web 16 .

Furthermore, the brick 10 in the area of the web 16 has a predetermined breaking point 26 which extends in the longitudinal direction of the web 16 and which is produced during the production by scoring with knives. Through this symmetrically arranged predetermined breaking point, the brick can then be easily divided into two halves with a hammer blow.

The brick shown in Fig. 1 is 373 mm long, 240 mm wide and 249 mm high. Since the support side 11 shown in FIG. 1 and the support side lying parallel to this are ground plane-parallel, the height tolerance of the brick is ± 0.5 mm. The web 16 is 58 mm wide. The wall of the brick is 30 mm.

The flat toothing formed on the end faces 15 and 17 is 8 mm deep, the tooth width being 25 mm and the distance between the teeth being 30 mm. The flanks of the teeth are chamfered so that each tooth appears trapezoidal when viewed from above. The further data of the brick shown in Fig. 1 are given in the following two tables.

Fig. 2 shows a masonry that is created from the brick shown in Fig. 1. As can be clearly seen, the corner of the masonry is designed as a butt joint, ie the bricks do not overlap in the corner area. In this case, a half stone 30 is used in the corner area in each layer, which is produced by separating a brick at its predetermined breaking point. In order to achieve sufficient strength in the corner area, two flat anchors 28 made of V4A steel are used at the connection points between a half-stone 30 and the adjacent brick, on which there is no toothing. As shown in FIG. 2, this also results in unobstructed fillability in the corner area, since the filling channels 12 and 14 even there have a constant cross-section down to the floor.

Fig. 3 shows a section through the wall of Fig. 2 along the line III-III, it being easy to see that the filling channels 12 and 14 run vertically continuously from floor to floor and have a constant cross-section.

To create a wall according to FIG. 2, the bricks according to the invention are built up using the thin-bed mortar method. Here, the brick is immersed in mortar with a support side, the mortar only adhering to the surface of the brick, but not penetrating into the filling channels. This method enables the mortar to be 1 mm thick. After the wall has been bricked up to the floor height, the cladding for the floor ceiling can already be attached or the reinforced concrete element ceilings can be put on. Subsequently, the cavities formed by the filling channels 12 and 14 are poured with concrete, and the formwork of the floor slab can simultaneously serve as a scaffold for filling the soundproofing wall. The floor slab can then be concreted in the same operation.

Claims (9)

1. Soundproofing block brick with two support sides, two toothed end faces, two side surfaces and two vertical filling channels with an intermediate web, whereby

• a) the support sides ( 11 ) are ground plane-parallel;
• b) the toothing on the end faces ( 15 , 17 ) is designed as a flat toothing;
• c) the total cross-sectional area of both filling channels ( 12 , 14 ) is between 50% and 55% of the area of a support side ( 11 );

characterized in that

• d) the wall width between a filling channel ( 12 , 14 ) and an end face ( 15 , 17 ) is half as large as the width of the web ( 16 ) between two filling channels, whereby
• e) the filling channels ( 12 , 14 ) are formed in the brick ( 10 ) in such a way that when the bricking is offset by half a brick width, they form vertical, continuous, storey-high cavities which have a constant cross section.

2. Brick according to claim 1, characterized in that the cross-sectional area of a filling channel ( 12 , 14 ) is between 20% and 30%, in particular 25% of the area of a support side ( 11 ). 3. Brick according to one of the preceding claims, characterized in that the wall width between a filling channel ( 12 , 14 ) and an end face ( 15 , 17 ) is the same size as the wall width between a filling channel ( 12 , 14 ) and a side surface ( 19 , 21 ). 4. Brick according to one of the preceding claims, characterized in that the ratio of tooth depth to tooth width Flat toothing is approx. 1: 4. 5. Brick according to one of the preceding claims, characterized in that the flat toothing has a tooth depth of 8 mm. 6. Brick according to one of the preceding claims, characterized in that the distance between the teeth is essentially the same is as large as the tooth width. 7. A method for creating a soundproofing wall with bricks according to one of claims 1 to 6, comprising the following steps:

• - Walling up the wall with bricks according to one of claims 1 to 6 using the thin-bed mortar method up to the level of the storey; and
• - Then fill the filling channels with concrete.

8. masonry of bricks according to claim 1, characterized in that each brick with its entire brick cross-sectional area rests on the underlying brick layer.