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  • What is ballast! DIYnot Forums

    Sep 03, 2019  Ballast is the main ingredient in concrete and is a proportional mixture of sharp sand and aggregate. Concrete is made up of 4 parts aggregate, 2 parts sharp sand, 1 part cement and water. The bit that is aggregate and sharp sand is known collectively as as 'ballast' and is sold as such ready-mixed in tonne bags etc.

  • is this ballast or Gravel concrete mix? I had to dig a ...May 11, 2020Fluorescent lights - how likely to the ballasts blow out ...Sep 03, 2019What's the difference between subbase and ballast ...Sep 03, 2019Ballast Mix DIYnot ForumsSep 03, 2019查看更多结果
  • what is ballast used in building

    Building Ballast Aggregates, Sand Cement Building. Ballast is a mix of sand and 10mm or 20mm stone. The 20mm Ballast is exceptionally versatile and is ideal for using to make concrete for paths, bases for under garden buildings, concrete floor in extensions or even foundations for a building.

  • Building Ballast Aggregates, Sand Cement Building ...

    Ballast is a mix of sand and 10mm or 20mm stone. The 20mm Ballast is exceptionally versatile and is ideal for using to make concrete for paths, bases for under garden buildings, concrete floor in extensions or even foundations for a building.

  • Concrete Mix Ratio Using Ballast - How Much Ballast Do You ...

    High strength concrete would be mixed using 1 part cement to 5 parts ballast – this affords the sort of water-tight concrete used for building slabs or concrete panels. Mixing 1 part cement to 6 parts ballast creates concrete suitable for driveways, paths and patios, and increasing the ratio to 1:8 gives foundation-strength concrete.

  • What is a concrete ballast? AnswersDrive

    Track ballast forms the trackbed upon which railroad ties (sleepers) are laid. It is typically made of crushed stone, although ballast has sometimes consisted of other, less suitable materials, for example burnt clay. The term "ballast" comes from a nautical term for the stones used to stabilize a ship.

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  • Know your materials: Cement, aggregate and sand DIY Tips ...

    Apr 03, 2013  Ballast is a mixture of sand and gravel and is used in the mixing of concrete. Sand If an aggregate has particles less than 5mm (1/5in) in diameter it is classified as sand.

  • Ballast - Wikipedia

    OverviewHistoryUsesIn commercial shipping

    The basic concept behind the ballast tank can be seen in many forms of aquatic life, such as the blowfish or members of the argonaut group of octopus. The concept has been invented and reinvented many times by humans to serve a variety of purposes. In the fifteenth and sixteenth century, the ballast "did not consist entirely of leakage, but of urine, vomit, and various foul food leavings that lazy sailors discharged into the ballast contrary to orders, in the belief that the pumps would take care of it." In the nineteenth c

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  • What is a ballast? - Regency Lighting

    Dec 06, 2019  If you outfit your buildings with fluorescent, HID, or plug-and-play linear LED lighting, you depend on a device called a ballast.. When the right ballasts are used, the end result can mean a cost-effective lighting solution that is energy efficient and gives you advanced controls over the amount of light produced in your space.

  • Electrical ballast - Wikipedia

    OverviewElectronic ballastsCurrent limitingResistorsReactive ballastsFluorescent lamp ballastsANSI ballast factorBallast triode

    An electronic ballast uses solid state electronic circuitry to provide the proper starting and operating electrical conditions to power discharge lamps. An electronic ballast can be smaller and lighter than a comparably-rated magnetic one. An electronic ballast is usually quieter than a magnetic one, which produces a line-frequency hum by vibration of the transformer laminations. Electronic ballasts are often based on switched-mode power supply(SMPS) topology, first rectifying the

  • Wikipedia CC-BY-SA 许可下的文字
  • Ballast Definition - What Does Ballast Mean in Construction?

    Ballast can also be used to hold down liners of all sorts, or tarps and sheathing that the completed hold down systems have not been completed for. Ballast is extremely important when burying an underground tank or vessel. The buoyancy of an underground container of any type, if surrounded by water, is tremendous, and the tendency to blow out ...

  • Ballast Mix DIYnot Forums

    Sep 03, 2019  1.44m3 x 1.76 = 2.53 tonne. I'm going to use a 1:5 ratio. So If I use the ratio on 2.53t of ballast and need to add extra for cement or is the 2.53t the total amount of ballast and cement. ie 2.53 x 0.2 (1/5) = 0.506 (506kg) = 20bags of cement 2.024t of ballast. Any help would be appreciated

  • Ballast Definition - What Does Ballast Mean in Construction?

    Ballast can also be used to hold down liners of all sorts, or tarps and sheathing that the completed hold down systems have not been completed for. Ballast is extremely important when burying an underground tank or vessel. The buoyancy of an underground container of any type, if surrounded by water, is tremendous, and the tendency to blow out ...

  • Aggregate building material Britannica

    Aggregate, in building and construction, material used for mixing with cement, bitumen, lime, gypsum, or other adhesive to form concrete or mortar.The aggregate gives volume, stability, resistance to wear or erosion, and other desired physical properties to the finished product. Commonly used aggregates include sand, crushed or broken stone, gravel (pebbles), broken blast-furnace slag, boiler ...

  • Everything You Need to Know About Ballasts — 1000Bulbs ...

    If your office, warehouse, or building uses fluorescent tubes or plug-and-play LED tube lights, you depend on your fixture’s ballast to keep things running smoothly. You know the ballast is an important part of the fixture, but do you know why or how it works?

  • What is ballast ? Types, Functions, Characteristics, Size ...

    Types of Ballast. Different materials used as ballast in India are broken stone, gravel, sand, ashes, cinders. And sometimes soft aggregates like moorum, kankar, overburnt and broken brickbats, blast furnace slag and selected earth. 1. Broken Stone. This is the best material for ballast and almost all important tracks are provided with stone ...

  • What are the different types of ballasts?

    Sep 12, 2019  Magnetic ballasts are the older ballast technology. For the fluorescent family, both T12 linear fluorescents and two-pin CFLs use magnetic ballasts. For HIDs, some metal halides and HPS lamps use magnetic ballasts. Magnetic ballasts are typically the culprit for buzzing and flickering because they regulate electricity incrementally.

  • What is a ballast? Adaptable Ballasts Lighting Answers ...

    ballast - A device required ... The practice of turning off electrical devices during peak energy demand hours to reduce building energy use. rated lamp life - The number of hours at which half of a group of product samples fail. The rated life is a median value of life expectancy; any lamp or group of lamps may vary from the published rated ...

  • Why Put Gravel on a Flat Roof - The Purpose of Gravel on ...

    A ballast system helps cut roof system application costs, as it takes less time to install since sealing the layers together isn’t necessary. Ballasted flat roofs are a popular choice, especially for commercial buildings. Additional benefits of ballast on a flat roof

  • Ballasted Roof Systems: Costly Issues You Should Understand

    Ballasted roof systems hold dirt and dust in between the stone which makes finding small punctures very difficult. Plus, the only way you’re able to see the membrane is to move the ballast. That means somebody (Mr. Roofer) is shoveling stone out of the way. This all takes time and costs the building owner more money.

  • Ballast Sand Trade Bulk Bags Building Materials

    Ballast Sand is a mixture of stone and sharp sand. It is ideal for use with concrete to create a stronger mix. The workability of the concrete will depend on the amount of sand and water used. This sand when mixed into concrete has many uses including making the foundations of garden walls, conservatories and sheds. It can also create small paths.

  • Sailing ballast - Wikipedia

    Ballast takes many forms. The simplest form of ballast used in small day sailers is so-called "live ballast", or the weight of the crew. By sitting on the windward side of the hull, the heeling moment must lift the weight of the crew.On more advanced racing boats, a wire harness called a trapeze is used to allow the crew to hang completely over the side of the hull without falling out; this ...

  • What is Ballast Water? Ballast Tanks and Ship Ballast ...

    Ballast water is the sea water taken into the ballast tanks of the ship to maintain ship's stability. Larger the size of the ship, greater the stability it requires, and more number of ballast tanks it possess. Ballast water intake and discharge is generally done at the ports before the loading and unloading of cargo. The process of ballasting thus not only provides stability to the ship but ...

  • How Much Ballast Do I Need To Mix Concrete? TJC Transport

    Concrete ballast or aggregates make up the bulk of the cement mix. Recycled materials such as air-cooled furnace slag or quenched molten slag are also used in ballast. The amount and particle sizes and distribution of concrete ballast added to a cement mix significantly affect the strength and the amount of cement used in the cement mix.

  • Are fluorescent light ballasts recyclable? AnswersDrive

    Are fluorescent light ballasts recyclable? ... Membrane roofing is a type of roofing system for buildings and tanks. It is used to move water off the roof. Membrane roofs are most commonly made from synthetic rubber, thermoplastic (PVC or similar material), or modified bitumen.

  • Sailing ballast - Wikipedia

    Ballast takes many forms. The simplest form of ballast used in small day sailers is so-called "live ballast", or the weight of the crew. By sitting on the windward side of the hull, the heeling moment must lift the weight of the crew.On more advanced racing boats, a wire harness called a trapeze is used to allow the crew to hang completely over the side of the hull without falling out; this ...

  • What is Ballast Water? Ballast Tanks and Ship Ballast ...

    Ballast water is the sea water taken into the ballast tanks of the ship to maintain ship's stability. Larger the size of the ship, greater the stability it requires, and more number of ballast tanks it possess. Ballast water intake and discharge is generally done at the ports before the loading and unloading of cargo. The process of ballasting thus not only provides stability to the ship but ...

  • How Much Ballast Do I Need To Mix Concrete? TJC Transport

    Concrete ballast or aggregates make up the bulk of the cement mix. Recycled materials such as air-cooled furnace slag or quenched molten slag are also used in ballast. The amount and particle sizes and distribution of concrete ballast added to a cement mix significantly affect the strength and the amount of cement used in the cement mix.

  • Are fluorescent light ballasts recyclable? AnswersDrive

    Are fluorescent light ballasts recyclable? ... Membrane roofing is a type of roofing system for buildings and tanks. It is used to move water off the roof. Membrane roofs are most commonly made from synthetic rubber, thermoplastic (PVC or similar material), or modified bitumen.

  • 10 Types of Stones Used for Building Constructions

    10 Types of Stones Used for Building Constructions 1. Basalt . Basalt stone, which is also known as traps, is commonly used in road construction, as aggregate in concrete production, rubble masonry works for bridge piers, river walls, and dams. The basalt stone structure is

  • Why Ballast is used in Railway Track Function of Ballast ...

    Track ballast is usually made from crushed stone, even though ballast has at times comprised of additional, less apt materials, for instance burnt clay. The terminology /term ‘ballast’ belongs to/comes from a nautical terminology meant for the stones utilized to balance/stabilize a ship.

  • Brick ballast Quality and Quantity check during house ...

    Dec 08, 2017  Brick Ballast. It is made by crushing the clay bricks into small pieces of approximately 40mm to 50mm in size. Bricks used for crushing are slightly over burnt or left over half cut bricks on site during brickwork masonry. Brick ballast is used for making pads underneath the foundations along with the mixture of cement and sand.

  • The Purpose of Ballast on a Flat Roof Roberts Roofing

    Sep 19, 2019  The ballast is used to keep the roofing system cool and of out of the sun’s harmful rays, thus keeping energy costs down. The gravel top coat is also extremely resilient to heavy foot traffic and high-wind scenarios. Despite the positive qualities associated with a ballasted roof system, there are some challenges.

  • lamp - How do I choose the correct fluorescent ballast ...

    Many can drive several sizes. What's more, some ballasts are able to drive 1 or 2 bulbs; if a bulb is absent, they still work fine. All of this is in the data sheet, along with other stuff. Ballast factor indicates how strong the ballasts drives the tubes. A ballast factor of

  • Electric Ballast Explained - Electrician Information Resource

    An electric ballast is needed to control the current passing through the LED. The power dissipation is minimal, so a simple resistor ballast is all that is needed. ... energy-efficient type when used in situations where the lamps are left on for extended periods of time such as office buildings or factories. start ballasts heat up the ...

  • Foundations - Ratio of cement to ballast DIY Doctor UK ...

    Oct 19, 2008  We are building a singl storey extension which extends 2m out from the back of the house and 5m accross. The footing are 700ml wide 1m deep. We are now hoping to mix the concrete ourselves and fill. The only problem is we are not sure how much ballast to cement to use. Is it 6:1?

  • Why is ballast used in railway roads? - Quora

    Anything other than ballast may cost more than ballast, it's importance is it's ability to not absorb water and thus protects rails from getting corroded. And it's easily available across India. Also it helps in distributing loads of locomotives a...

  • Brick Ballast The Construction Civil

    Brick Ballast. Brick ballast is made of first class well burnt or slightly over-burnt brick-bats to 40 mm gauge for foundations and floor concrete and 25 mm gauge for roof concrete.No under-burnt or “jhama” bricks (over-burnt porous) should be used. About 390 to 420 9-inch bricks and 420 to 440 Indian Standard Modular (IS) bricks make one cu. m of brick ballast. 280 to 351 9-inch bricks ...

  • Installing leds benefits ballast bypass - Sitler's LED ...

    Nov 28, 2016  Unlike fluorescent tubes, LEDs don’t require a ballast to regulate current. When using direct fit LEDs, the ballast is still using energy and eating into your possible energy savings. With a ballast bypass, you are only paying for the energy the LED lights use, which is

  • lamp - How do I choose the correct fluorescent ballast ...

    Many can drive several sizes. What's more, some ballasts are able to drive 1 or 2 bulbs; if a bulb is absent, they still work fine. All of this is in the data sheet, along with other stuff. Ballast factor indicates how strong the ballasts drives the tubes. A ballast factor of

  • Ballast Aggregates Sand Building Supplies ...

    Ballast is used for many types of building applications and consists of sharp sand and gravel. Ballast is usually mixed with cement and water to create concrete. At BQ our ballast bags are available in bulk bag and large bag format, both of which can be home delivered using our bulk delivery service.

  • Why Ballast is used in Railway Track Function of Ballast ...

    Track ballast is usually made from crushed stone, even though ballast has at times comprised of additional, less apt materials, for instance burnt clay. The terminology /term ‘ballast’ belongs to/comes from a nautical terminology meant for the stones utilized to balance/stabilize a ship.

  • Railroad Ballast and Other Track Materials

    Railroad ballast serves as a bed for railroad tracks and provides track stability, drainage, and support of significant loads carried by railcars. In addition, it deters the growth of vegetation and allows for track maintenance to be performed more easily.

  • Why is ballast used in railway roads? - Quora

    Anything other than ballast may cost more than ballast, it's importance is it's ability to not absorb water and thus protects rails from getting corroded. And it's easily available across India. Also it helps in distributing loads of locomotives a...

  • Ballast - EC12 Building Site

    Note: If you are building the System Board, complete that step before installing the ballast. The Ballast. You have received a single piece of lead ballast poured or molded for the EC12 hull. The hull is a one-design and all ballast by approved hull manufacturers will fit in this hull.

  • Chapter 7 EO test Flashcards Quizlet

    the grid be securely fastened together and secured to the building structure and the lay-in fixtures be securely fastened to the grid members using bolts, screws, rivets, or listed clips A(n) ____ is NOT a type of fluorescent ballast.

  • Installing leds benefits ballast bypass - Sitler's LED ...

    Nov 28, 2016  Unlike fluorescent tubes, LEDs don’t require a ballast to regulate current. When using direct fit LEDs, the ballast is still using energy and eating into your possible energy savings. With a ballast bypass, you are only paying for the energy the LED lights use, which is

  • Brick Ballast The Construction Civil

    Brick Ballast. Brick ballast is made of first class well burnt or slightly over-burnt brick-bats to 40 mm gauge for foundations and floor concrete and 25 mm gauge for roof concrete.No under-burnt or “jhama” bricks (over-burnt porous) should be used. About 390 to 420 9-inch bricks and 420 to 440 Indian Standard Modular (IS) bricks make one cu. m of brick ballast. 280 to 351 9-inch bricks ...

  • Foundations - Ratio of cement to ballast DIY Doctor UK ...

    Oct 19, 2008  We are building a singl storey extension which extends 2m out from the back of the house and 5m accross. The footing are 700ml wide 1m deep. We are now hoping to mix the concrete ourselves and fill. The only problem is we are not sure how much ballast to cement to use. Is it 6:1?

  • CBM - Certified Ballast Manufacturers

    usage. Areas of interest where CBM (Certified Ballast Manufacturers) is mostly used

  • Functions of Track Ballast alongside the Railway Track

    Functions of track ballast. ... The excessive use of railway lines for transportation poses a threat to the buildings in the areas near the tracks due to the immense vibrations the tracks experience when a high speed locomotive moves over them. Also, the loud noise that is produced when a train moves rapidly also the tracks is also a nuisance ...

  • Railroad Ballast Southern Crushed Concrete

    Product Description. Railroad Ballast is a recycled product commonly made up of crushed limestone or other rock. It is primarily used during the construction and maintenance of railroads, holding the en cross ties in place and in turn, holding the rails in place.

  • What is Ballast, Materials for Ballast and Screening of ...

    The ballast should be renewed from time to time, because due to continuous hammering the ballast converted into the powder form. This powder along with dust, sand ashes from locomotive form an impervious layer and prevent the ease flow of water through ballast. Ballast maximum size is 1.9 to 5.0 cm with some reasonable proportion of intermediate sizes.

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    The materials of processing: *

    • Granite
    • Limestone
    • Basalt
    • Pebble
    • Gravel
    • Gypsum
    • Marble
    • Barite
    • Quartz
    • Dolomite
    • Gold Ore
    • Copper ore
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