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Sub-Ballast Mats - Christian Berner

sub-ballast mat in the relevant load and frequency range. Getzner sub-ballast mats satisfy this condition because the dynamic stiff-ness is only minimally dependent on frequency, load and amplitude. The sub-ballast mats are particularly effective in the frequency range corresponding to the wheel/rail super-structure resonance for a superstruc-

Trackbed and sub-ballast mats - Calenberg Ingenieure

Sub-ballast mats are available in different designs and rigidities for use with axle loads up to 250 kN and all train speeds. The wear-resistant protective layer in USM G 1000 mats withstand mechanical impact such as those from ballast or light construction machinery passing over the mat without the granulate layer (isolating layer) being damaged.

DAMTEC® Sub Ballast Mat K-For Rails-Milton Technologies

DAMTEC® Sub Ballast Mat K. Sub-ballast mat and mass-spring system. DAMTEC® KRAIBURG SBM is an isolation and protection mat for railway track constructions, proofed in accordance to DIN 45673-5 - mechanical vibrations – resilient element used in railway tracks – part 5: laboratory test procedures for under ballast mats.. The SBM mat absorbs vibrations and reduces acoustic emission as well ...

Ballast Mats (Sub Ballast Mats) Slab Track Mats Floating ...

Ballast mats (Sub Ballast Mats) One of the most successful methods of minimising the transmission of noise and vibration from railway tracks is the provision of a resilient track. The best level of performance is achieved by the installation of a fully floating concrete slab track

Under ballast mat SBM K - DAMTEC®

SBM stands for the term “Sub Ballast Mat”, K for the material “rubber” (German: Kautschuk). Our under ballast mats comply with the technical delivery conditions of Deutsche Bahn (DBTL 918071. The user releasing as a controlled design of the under ballast mat DAMTEC® SBM K 10V for ballasted track was approved by DB Netz AG from ...

Product Review: Sub Ballast Matting (SBM)

The Projex Damtec Sub-Ballast Mat (SBM) is an isolation and protection matting for all types of railway construction & infrastructure maintenance in heavy rail, heavy haul rail, high speed, rapid transit and light rail networks / systems. The Sub Ballast Mat absorbs vibrations and considerably reduces acoustic emissions as well as structure ...

SUB BALLAST MATS & BEARINGS FOR MASS-SPRING SYSTEMS

DAMTEC® Sub Ballast Mat K High quality rubber granules, granules made of foamed rubber and polyurethane are used as part of the waste management cycle for this product. Only good-as-new material that originates from faulty batches or punching waster is used. As a result,

SUB BALLAST MATS & BEARINGS FOR MASS-SPRING SYSTEMS

and its DAMTEC® division has specialised in sub ballast mats and bearings for mass-spring systems and can look back on nearly 20 years of experience. Consequently, KRAIBURG Relastec has been established on the international market for a long time as a result of many projects using DAMTEC® products to solve acoustic and

BORNE SOUND CONTROL - Sub-ballast mats - Noise protection

USM track bed and sub-ballast mats Product description and areas of use Our track bed and sub-ballast mats are made of synthetic and natural rubber and are available in various designs and rigidities for use at all train speeds and with axle loads up to 250 kN. These mats produce an effective reduction in vibration emissions from railway traffic.

Sub Ballast Matting Installation Details - Projex Group

Step 5: Use reinforced Projex SBM Joining Tape over all joints of Sub-Ballast Mat and where change of direction is required e.g. kerb or ballast block. The tape prevents displacement and formation of gaps that can give rise to sound bridging.

Ballast Mats (Sub Ballast Mats) Slab Track Mats Floating ...

Ballast mats (Sub Ballast Mats) One of the most successful methods of minimising the transmission of noise and vibration from railway tracks is the provision of a resilient track. The best level of performance is achieved by the installation of a fully floating concrete slab track

DAMTEC® Sub Ballast Mat K-For Rails-Milton Technologies

DAMTEC® Sub Ballast Mat K. Sub-ballast mat and mass-spring system. DAMTEC® KRAIBURG SBM is an isolation and protection mat for railway track constructions, proofed in accordance to DIN 45673-5 - mechanical vibrations – resilient element used in railway tracks – part 5: laboratory test procedures for under ballast mats.. The SBM mat absorbs vibrations and reduces acoustic emission as well ...

SUB-BALLAST-MAT AND MASS-SPRING-SYSTEM

DBS 918071-1, chapter 2.3 defines for sub-ballast mats with the purpose to reduce ballast pressure a permissible range of the static stiffness at room temperature of 0.10 N/mm³ ≤ zul C stat1 ≤ 0.15N/mm³ (v > 230 km/h). The determined nominal value for DAMTEC® KRAIBURG SBM with thickness of 10mm is inside this application range. Temperature

Sub-ballast mat G 1000 Series - Why choosing this product ...

Sep 17, 2020 · The USM G 1000 sub-ballast mat isolates and protects the subsoil of e.g. bridges and tunnel structures within the track system. The ballast is also effectively protected against wear. In addition to uncomplicated installation, the sub-ballast mat is well suited to mitigate vibration emissions. By using the USM G 1000 series, structure-borne and ...

Sub-Ballast Mats - 4 Manufacturers, Traders & Suppliers

Sub-Ballast Mats - You find here 4 suppliers from Germany. Please obtain more information on spare parts, servicing, maintenance, Repair, repair or accessories directly from the registered companies.

Projex Damtec sub-ballast matting meets ASA and TfNSW ...

Oct 29, 2018 · Projex Group announces that their Damtec sub ballast mat conforms to the ASA and TfNSW Standard for Ballast (T HR TR 00192 ST 2016), Section 11.6, Track stiffness and ballast mat.

Vibration isolation in rail traffic - KRAIBURG PuraSys

PURASYS SBM. Sub-ballast mats PURASYS SBM products are decoupling and protective mats under rail systems tested according to DIN 45673-5 (Mechanical vibration – Elastic elements of the superstructure of railway tracks). They reduce structure-borne noise and secondary airborne sound as well as vibration emissions. For ballasted tracks, the service life is extended by a lower and more

Ballast mats for the reduction of railway traffic ...

Nov 01, 2012 · Ballast mats are an efficient countermeasure to reduce vibrations induced in the middle frequency range [3]. In fact, the introduction of the resilient elements beneath the ballast or the sub-ballast, allows achieving a low resonant frequency, i.e., from 20 Hz to 50 Hz, due to the heavier mass above the resilient element.

Installation of Sub Ballast Mat DAMTEC® SBM K 10V - YouTube

Oct 11, 2016 · Weitere Informationen zur Schwingungsisolierung im Bahnbereich finden Sie unter:kraiburg-relastec/damtec/schwingungsd%C3%A4mpfung-bahn.htmlFor...

Rubber Floating Slab Mats for Track Vibration Attenuation ...

Pandrol Floating Slab Mat (FSM) is a high performing vibration attenuation floating slab system based on the mass-spring principle, where the concrete slab (the mass) is elastically supported by a continuous resilient mat (the spring). Pandrol FSM are made of high quality resin-bonded rubbers. Depending on these design parameters, the Pandrol ...

Track ballast - Wikipedia

The sub-ballast layer gives a solid support for the top ballast, and reduces the ingress of water from the underlying ground. Sometimes an elastic mat is placed on the layer of sub-ballast and beneath the ballast, thereby significantly reducing vibration. It is essential for ballast to be piled as high as the ties, and for a substantial ...

TRACKELAST Sub Ballast Mats by edilon)(sedra bv - Issuu

Aug 19, 2009 · TRACKELAST Sub Ballast Mats (SBM) edilon)(sedra bv Nijverheidsweg 23 NL-2031 CN Haarlem. P.O.Box 1000 NL-2003 RZ Haarlem. T +31 / (0)23 531 95 19 F +31 / (0)23 531 07 51

Laboratory mechanical fatigue performance of under-ballast ...

ABSTRACT: Under-ballast mat applications have seen growth in the North American freight market, primarily being employed in ballasted concrete bridge decks and tunnels as a solution to lower the track stiffness while reducing the stress state of the ballast and reducing ground-borne vibrations . However, current standard proce-

Function of Ballast in Railway Track - Civil Lead

Primarily sand ballast is used for cast iron pot sleepers. It is also used for wooden and steel sleepers where traffic density is very low. Moorum. Moorum is the decomposed laterite rocks. It is found in abundance in many parts of India. Normally it is used as initial ballast in

DAMTEC SUB BALLAST MAT K - Bridge Preservation

DAMTEC SUB BALLAST MAT K . Bridge Preservation • 686 S. Adams Street, Kansas City, Kansas 66105 • Phone: 913-912-3305 • Fax: 913-951-0601 v. 091820 4. INSTALLATION SCHEMATIC OF SBM K MATS 5. INSTALLATION OF SBM K MATS DAMTEC® SBM K mats must be laid at right angles to the track axis. The mats can be cut using a low speed

Ballast-Lok® Rubber Ballast Mats - Cold Forge Rail Products

Sub-ballast mats are available in different designs and rigidities for use with axle loadsup to 250 kN and all train speeds. The wear-resistant protective layer in USM G 1000 mats withstand mechanical impact such as those from ballast or light construction machinery passing over the mat without the granulate layer (isolating layer) being damaged.

Under Ballast Mats - Getzner Werkstoffe

under ballast mat in the relevant load and frequency range. Getzner under ballast mats satisfy this condition because the dynamic stiff-ness is only minimally dependent on frequency, load and amplitude. The under ballast mats are particularly effective in the frequency range corresponding to the wheel/rail super-structure resonance for a ...

Projex Damtec Sub-Ballast Matting (SBM) for Rail ...

Projex Sub-Ballast Mat Application Layers. Noise & Vibration Attenuation Solutions for Rail. SBM is an isolation & protection mat for all types of railway construction & infrastructure maintenance in heavy rail, heavy haul rail, high speed, rapid transit and light rail networks/systems.

China Ballast Mats, China Ballast Mats Manufacturers and ...

Elastomeric Vibration reducing Sub-ballast mats. Zhejiang Tiantie Industry Co., Ltd. US $210.00-$220.00 / Square Meter . 100 Square Meters (Min. Order) Contact Supplier Add to Compare. High quality electric outfoor theread killer mosquitoes ...

Rubber Floating Slab Mats for Track Vibration Attenuation ...

Pandrol Floating Slab Mat (FSM) is a high performing vibration attenuation floating slab system based on the mass-spring principle, where the concrete slab (the mass) is elastically supported by a continuous resilient mat (the spring). Pandrol FSM are made of high quality resin-bonded rubbers. Depending on these design parameters, the Pandrol ...

Railroad Ballast (Rock): Specifications, Sizes, Background

One often forgotten aspect of the ballasting system is what is known as sub-ballast or sub-grade. This layer of crushed stone or even pavement, as some railroads today now use acts as a moister barrier and added support system for the railroad track structure above (including the rails, ties, and ballast).

Improved performance of ballasted tracks under impact ...

Sep 01, 2019 · These perforations also act as ‘frictional’ elements maintaining good contact with the granular layer on either side (ballast and sub-ballast). Essentially, this mat is permeable and it has a permeability coefficient approximately of 2.5 × 10 −4 cm/sec.

Ballast - Ashville Aggregates Supplier

Ballast is a dense mixture of sand and gravel that form a rough, coarse aggregate used in an extensive range of construction applications. Primarily this aggregate is used in heavy-duty work and for practical uses such as making concrete. The ballast that we supply our clients with comes in two different size, 10mm and 20mm.

Sub-Ballast Mat - Deutsch-Übersetzung – Linguee Wörterbuch

T he Sub Ballast Mats were laid directly onto the sealing layer on the surface of the viaduct at a thickness of 2 x 23 mm. strail.de. strail.de. D ie Unterschottermatten wu rden auf der Grundfläche des Viadukts direkt auf die Abdichtungsschicht in einer Dicke von 2 x 23 mm verlegt.

A case study in construction optimisation for sub-ballast ...

A case study in construction optimisation for sub-ballast layer. Download. Related Papers. THE EFFECTS OF FIBRE REINFORCEMENT ON FREEZE THAW DURABILITY. By Dean Clarke. Abrasion resistance of aggregates in asphalt December 2010. By Muhammed firoz Aa.

ROOF PAVERS - BALLAST TILE/MAT/BLOCK FOURTEEN (14)

ROOF PAVERS - BALLAST TILE/MAT/BLOCK FOURTEEN (14) PART SPECIFICATIONS: 1.). PRODUCT: Self-Interlocking (with “Button-Lock™ Technology), resilient, unitary, rubberized safety surfacing flooring and paver products in the tile/mat/block/paver form. Related sections: Division 7 Sub: 07700 Roof Specialties and Accessories

Performance of ballast mats on passenger railroads ...

However, a ballast mat installation outdoors on surface track with sub-grade slabs may not have the same performance as a tunnel base where sides are stiffened by walls.

Ground vibration mitigation by using ballast mat | JVE ...

It is assumed that the fixed hysteretic damping value is 0.1 for the mat. Fig. 4 shows the finite element model after adding ballast mat. Ballast mat was inserted between the sub-ballast and embankment.