Noise reduction of concrete floor crusher

MJ Series Jaw Crusher

MJ Series Jaw Crusher

MJ series jaw crusher is mainly used as a coarse crushing crusher. Its purpose is to crush rocks into smaller particle sizes for subsequent processing…

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MC Series Single-Cylinder Hydraulic Cone Crusher

MC Series Single-Cylinder Hydraulic Cone Crusher

MC series single cylinder hydraulic cone crusher is used in secondary and fine crushing operations. It is widely used in metallurgy, construction, highway,…

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ML Series Vertical Shaft Impact Crusher

ML Series Vertical Shaft Impact Crusher

Vertical shaft impact crusher is often used in the final crushing circuit. Due to the ability to produce fine-grained final products, ML series vertical…

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MD Series Multi-Cylinder Hydraulic Cone Crusher

MD Series Multi-Cylinder Hydraulic Cone Crusher

MD series multi-cylinder hydraulic cone crusher is used in the second and third stages of mineral processing and stone crushing, as well as the superfine…

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MF Series Fixed Shaft Circular Vibrating Screen

MF Series Fixed Shaft Circular Vibrating Screen

In order to eliminate the phenomenon of unbalanced vibration, unstable amplitude, on/off bounce, poor screening effect, and cracking of the screen box…

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MGD Series Vibrating Feeder

MGD Series Vibrating Feeder

MGD series vibrating feeder is designed for ultra-heavy working conditions and is suitable for feeding materials to primary jaw crushers, primary impact…

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MGB series hopper discharge feeder

MGB series hopper discharge feeder

MGB series hopper discharge feeder is mainly used for the uniform, quantitative and automatic control of under-silo feeding of bulk materials.…

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MZA/K Series Circular Vibrating Screen

MZA/K Series Circular Vibrating Screen

MZA/K series circular vibrating screen produced by Meilan has an axis-eccentric circular vibrating screen, which can be used for dry and wet classification…

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  • OBORTS Company, Opposite the residence of old General Mambou, Near Dragage, Bastos, Yaoundé, Cameroon
    Email: [email protected]

  • Duracoustic S.T.O.P.™ Sound Deadening Floor Underlayment

    Duracoustic S.T.O.P.™ floor impact noise reduction underlayment is designed to help with that problem. This underlayment is durable and resistant to ripping and bunching, making the installation easy.

  • How Flooring Affects Acoustic Performance

    The airborne noise reduction test, ASTM C423-02a,1 measures a surface’s ability to absorb these and other airborne sounds which contribute to ambient (background) noise. A floor covering sample is typically tested in an anechoic reverberation room. The test measures the product’s absorption of sound

  • Acoustic Properties of Precast Concrete

    Sound Reduction Ratings – Wall & Floor Panels Precast concrete floor and wall panels (as well as other materials eg glass) are tested both under laboratory conditions and on-site, to establish their acoustic ratings. This is basically to establish how efficient they are at reducing the transmission of noise from outside to inside environments.

  • How To Soundproof A Floor: The Complete Guide

    Dec 21, 2020· Concrete Floors. Concrete floors carry a lot of mass, so they are extremely good on their own at soundproofing against airborne noise. However, they do transmit impact noise quite well. If you’ve lived below a concrete floor before, you may be familiar with the thud of your neighbor getting out of bed in the morning vibrating through the floor.

  • How to Reduce Noise from Neighbors on Upstairs Floors

    Under-layments and concrete or gypcrete type toppings can do a great deal to reduce the impact and airborne noise. However the new buyer should get in writing a guarantee that the floors and party walls will meet minimum building code requirements. As an added precaution, a prospective buyer should conduct his/her own evaluation.

  • Noise Reduction Coefficient (NRC)

    Noise Reduction Coefficient (NRC) While STC and SRC indicate how well noise passes through different materials, NRC (Noise Reduction Coefficient) measures how well materials stop sound from Concrete (block), unpainted Cork, floor tiles (3/4" thick) Cork, wall tiles (1" thick) Fiberglass, 1" Semi-rigid Glass Gypsum Linoleum on Concrete


    Concrete masonry walls are often used for their ability to isolate and dissipate noise. Concrete masonry offers excellent noise control in two ways. First, it effectively blocks airborne sound transmission over a wide range of frequencies. Second, concrete masonry effectively absorbs noise, thereby diminishing noise …

  • Soundproofing Floors Acoustic Flooring Sound Reduction

    Soundproofing Products for Floors. Noise transfer through floors is a common issue in residential, commercial and industrial buildings. The noise can manifest itself as airborne noise, such as TV, Music, and speech or impact noise, such as footsteps and dropped items.

  • Cement Plant Noise Control - eNoise Control

    Safety managers frequently ask us how to soundproof their compressor rooms, ball mill, crusher, grinding operation, hammer mill, screeners, and other equipment and machinery. This list of industrial equipment creates noise that can present challenges from noise …

  • Why Concrete Sound Barriers Do Not Reduce Your Noise Problem

    May 25, 2017· Concrete Noise Reducing Barriers Sound wall construction using concrete is an outdated technology. Newer wall systems are lighter, easy to customize and work for a variety of applications.

  • (PDF) Impact Sound Reduction of Concrete Layers with Cork

    The reduction of transmitted impact noise achieved by concrete layers containing cork granules is assessed. Several mix designs using varying percentages of cork and cement were studied.

  • Assessment of Engineering Noise Controls at a Talc

    floor.With the FEM fans and crushers operating, a sound level reduction was achieved in the main mill area from a baseline range of 84 to 91 dB(A) down to an initial control range of 83 to 89 dB(A) (Table 1). While this reduction of about 2 dB(A) is a small numeric change, a reduction of 3 dB(A) would be attributed to reducing the

  • More Than a Nuisance - Construction & Demolition Recycling

    Jul 26, 2011· Another way silica can be present in concrete is when silica fume is added to paving mixtures. Silica fume (also known as micro-silica) “is a byproduct of the reduction of high-purity quartz with coal in electric furnaces in the production of silicon and ferrosilicon alloys,” according to the Federal Highway Administration (FHWA).

  • Noise Levels for Common Equipment - University of Florida

    The Noise Reduction Rating (NRR) needed for each piece of equipment is given. For equipment not listed, please contact EH&S at 392-1591 for an evaluation. Noise Source Sound Level NRR Needed Time Allowed Airboat 108 dBA 30 2 minutes Band Saw 104 dBA 26 6 minutes Blender 91 dBA 13 2 hours Blower 99 dBA 21 19 minutes Concrete Saw 112 dBA 34 1 minute

  • Soundproof Between Existing Floors: 7 Best Noise Reduction

    Jul 09, 2020· 2. Figuring Out The Type Floor you Are Soundproofing. Just like noise, there are two types of floor construction that you may face. a) Concrete Floor. As concrete floor construction is denser than any other floor construction it will block most of the ariel noise all by itself. But collision or impact noises will be carried to the next floor.

  • Floor Soundproofing Sound Management dB Soundproofing

    You can Soundproof a floor for increased noise reduction using acoustic floor insulation between joists to stop airborne sounds. Acoustic insulation for floors will reduce the noise generated by noisy neighbours transferring through floors.


    Precast Concrete 14" Tee 4" Concrete Structural Floor 6" Concrete Structural Floor 3" Lightweight Concrete (polished) 1/2" Plywood 2" KINETICS RIM L-2-16 3-1/2" Wood Deck Subfloor Steel Beam and Glue Lam Joist Support No Ceiling 4" Concrete Slab 1/2" Plywood 2" KINETICS RIM-Q-2-16 6" Concrete Slab 4" Concrete Slab 1/2" Plywood 2" KINETICS RIM-Q

  • Soundproof Between Existing Floors: 7 Best Noise Reduction

    Jul 09, 2020· You can soundproof concrete floor by directly installing drywalls. Remember to keep a gap of about an inch or two between the floor and the drywall. You can also cover the entire floor with thick rugs which will reduce the noise coming from downstairs drastically. Try to use rugs as thick as possible for maximum sound blocking.

  • Silent Tread Acoustical Floor Underlayment - MatsMatsMats

    Crush-Proof: Silent-Tread is made from a durable rubber material will not be crushed or degraded by the flooring system. It will retain its noise reduction capabilities for the life of the floor.

  • Sound Transmission Class Guidance - HUD

    Resistance to sound transmission increases with unit weight and decreases with porosity. For example, unpainted, open textured concrete block exhibits improved resistance to sound passage after sealing the surface with plaster or paint. The sealing of the pores result in a …


    Concrete masonry offers excellent noise control in two ways. First, it effectively blocks airborne sound transmission over a wide range of frequencies. Second, concrete masonry effectively absorbs noise, thereby diminishing noise intensity.

  • concrete crushering is how many decibles

    Decibel Level Of A Stone Crusher Crusher Mills Cone . Mini Concrete Crusher for saleMini Concrete Crushing machine Shifts the noise below 75 decibels db level dust pollution 6 After secondary crushing the stone enter into the vsi crusher . Further Details

  • Sound-absorbing concrete block

    concrete block Acoustically engineered block quiet noisy areas and improve overall sound quality By John A. Koski Noise reduction coefficients (NRCs) for various building materials Material Surface Texture Approximate or Finish NRC concrete floor all .02 glass all .02 wood floor all .03 plaster smooth .04 plaster rough .05 brick all .05 wood

  • Acoustical Data - Impact Insulation Class (IIC)

    Mar 18, 2021· The Noise Reduction Coefficient (NRC) is the rating of sound striking the material that is absorbed rather than reflected away by the material. NRC's range from.00 (no absorption) to 1.00 ( absorption). Resilient flooring has an NRC of approximately 0.03 to 0.05; carpet (1/8” pile) is 0.10 to.15.

  • Noise Assessment of Stone/Aggregate Mines: Six Case Studies

    Noise assessment of stone/aggregate mines: six case studies Tntrodustion LR. '&AUER AN!1.1. BAII~H number of ways, including condnct- Exposure tq noise and noisefa- ing a cross-sectional survey of noise dnced hearing loss (NEL) contin- sources and worker noise exposures URS to be problematic for the U.S. in the mining industry.Initially, these

  • Technoflex TechnoFloor Acoustic 100 sq. ft. 48 in. x 25 ft

    TechnoFloor Acoustic Underlayment provides superior soundproofing for any type of floor covering - FIIC 68. It's soundproofing technology absorbs sound and impact noise, even exceeding required standards. Made of recycled rubber particles, it provides protection against moisture on concrete floors.

  • Sound Insulation to Dampen Noise Between Floors

    Mar 27, 2021· Recycled felt underlayment is both eco-friendly and effective for noise reduction. About twice as expensive as polyethylene foam, felt underlayment is a good choice if sound absorption is your main objective and if your budget can handle the added cost. Recycled felt underlayment is about four times heavier than foam and thus is denser.

  • Controlling Noise on Construction Sites

    Below are the noise levels of common construction. Equipment Sound Level at Operator Average Range Background* 86 Earth Moving: Front End Loader 88 85-91 Back Hoe 86.5 79-89 Bull Dozer 96 89-103 Roller 90 79-93 Scraper 96 84-102 Grader <85 Truck 96 89-103 Paver 101 100-102 Material Handling: Concrete Mixer <85 Concrete Pump < 85

  • Decibel Level Of A Stone Crusher Crusher Mills, Cone

    Mini Concrete Crusher for sale,Mini Concrete Crushing machine. Shifts the noise below 75 decibels (db level), dust pollution. 6. … After secondary crushing, the stone enter into the vsi crusher …

  • Construction Noise Handbook

    9.0 Construction Equipment Noise Levels and Ranges - Handbook - Construction Noise - Noise - Environment - FHWA Concrete Batch Plant No 15 83 N/A 0 Concrete Mixer Truck No 40 85 79 40 Concrete Pump Truck No 20 82 81 30 Concrete Saw No 20 90 90 55 Crane No 16 85 81 405

  • Cone Crusher Noise Produce And Reduction

    Apr 06, 2020· CONE CRUSHER NOISE PRODUCE AND REDUCTION. 2020-04-06 12:29:09. With the rapid development of economy in the modern society, the consumption of metallurgy and construction material is getting higher and higher, so does the raw materials that need to be crushed. Spring cone crusher, as very important crushing equipment, plays very important role

  • How Soundproof Are Concrete Walls? Soundproof Cow

    Apr 06, 2018· Reduce the impact of your concrete floors with our Proflex™ 90 floor underlayment. This superb fabric dampens sound production that transfers throughout your room with every step. If your floor or wall has any cracks that make it susceptible to noise transmission, consider investing in an acoustic sound sealant as well. Covering up any weak

  • Home Soundproofing (DIY)

    A very quiet, very uncomfortable solid concrete home. Taking things to an extreme, you could build a house that would shut out most outside noise.You could erect four solid concrete walls on a concrete slab, cap them with a concrete roof, then cover the whole house with earth.

  • Flooring Sound Transmission in Differne Types

    Underlayment and insulation significantly enhance the IIC. The “loudest” floor is stone or tile laid directly over concrete. However, the IIC scale does not account for joist noises like squeaking or rattling. NRC (noise reduction coefficient) measures the amount of noise absorbed by the material and not reflected. A room with a high NRC

  • Sound Transmission through Massive Walls or Floors

    Example - A Concrete Floor and Sound Attenuation. The mass m of a concrete floor with density 2300 kg/m 3 and thickness 0.2 m can be calculated as. m = (2300 kg/m 3) (0.2 m) = 460 kg/m 2. From the chart above the mean sound attenuation for the floor can be estimated to. 52 db. The attenuation dL at 250 Hz can be calculated as. dL = (52 db


    Jan 08, 2012· The greater the reduction in size during subsequent crushing stages from primary, secondary to tertiary crushing, the higher the emissions. Intermittent noise level is also generated at the crusher during the time of the breaking of stones. On the other hand the sprinklers wet the floor area as well as the stock piles and hauling roads

  • Blocking Sounds in Floors and Ceilings HowStuffWorks

    Try Green Glue. Green Glue is a viscoelastic compound that's used to block sound in walls, floors and ceilings. Green Glue is an incredibly effective sound blocker, eliminating about 90 percent of noise [source: Green Glue ]. For noise that's coming from upstairs, install a drop ceiling in your home.

  • Quieter Construction Methods

    Nowadays, a number of commercially available quieter equipment or methods for concrete breaking or removal could be less noisy or could reduce the noise propagation. These include high pressure water jet system, handheld concrete crusher, medium duty breaker, blade saw, wire saw and noise enclosure.

  • Best options for noise control in mulit-family dwellings

    Best options for noise control in mulit-family dwellings. Acoustical separation of units is a most critical component in the design of multi-family housing. Our flooring underlayments are engineered with a recycled fiber blend to help aid with noise control and impact sound from traveling to rooms below. All of our fiber underlyaments have LEED building benefits.

  • Sound Insulation to Dampen Noise Between Floors

    Mar 27, 2021· Short of that, placing a dense sound barrier in the open joist spaces between the floors is the most effective way to slow the transmission of noise. This is done is by removing the ceiling drywall and inserting enough fiberglass or rockwool insulation to fill the joist space.

  • Perlitein Sound Insulation Applications Types of Noise

    Reduction Index (SRI) outside the U.S. ˚is is an integer rating how well a building partition reduces airborne sound. ˚e STC rating roughly re˜ects the decibel reduction in noise that a partition provides. In comparing sound absorbing materials for noise control purposes, the Noise Reduction Coe˙cient (NRC) is commonly used.

  • 12 Soundproofing Floors ideas sound proofing, sound

    Aug 23, 2016 - It is hard to believe but your house/office floor can also be a source of the disturbing noise. So that is why we have designed best floor soundproofing products to avoid the annoying noise. . See more ideas about sound proofing, sound proof flooring, soundproofing material.