Concrete Core
Concrete Core
i am cutting a hole in a concrete wall with a rotary cutter. should i chisel away the core, or keep it intact
I am using an SDS drill, a 127mm cutter with pilot drill, and am using WD40 as the cutting fluid. progress has stopped, so should i chisel at the “core”, or simply keep the core intact? any ideas about a better cutting fluid would help !! thank you
!
Your choice of cutting fluid baffles me, just use a little water in a spray bottle to hold down the dust. Also you should have a dust mask on, Silicosis is a bad form of cancer caused by concrete dust. Put the WD40 down. Use a shop vac to draw out the loose debris. and break the core out as you go or your bit will bottom out. Also you should have a Pilot hole drilled all the way through. You should reverse and drill from both sides of the wall so that you don’t SPAWL the surface when you finally break through.
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CONCRETE SLAB SAW – CORE CUT $5,000.00 |
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2005 CORE CUT CC2500 W/HONDA 24HP 26″ WALK-BEHIND CONCRETE SAW! $4,500.00 |
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CONCRETE FLOOR GRINDER – CORE CUT $2,800.00 |
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Wet Cured Concrete Core Bit – 24 Inch x 14 oal $2,499.90 |
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Wet Cured Concrete Core Bit – 22 Inch x 14 oal $2,199.90 |
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BLUEROCK™ 10″ Z-1RB CONCRETE CORE DRILL 2 SPEED w/ ROLLING BASE- PACKAGE DEAL $1,999.00 |
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NEW BLUEROCK™ 10″ Z-1B CORE DRILL 2 SPD W/ STAND CONCRETE CORING – PACKAGE DEAL! $1,899.00 |
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Wet Cured Concrete Core Bit – 20 Inch x 14 oal $1,799.90 |
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Wet Cured Concrete Core Bit – 18 Inch x 14 oal $1,449.90 |
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Wet Green Concrete & Asphalt Core Bit – 14 x 14oal $1,299.90 |
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Wet Cured Concrete Core Bit – 16 Inch x 14 oal $1,249.90 |
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10″ BLUEROCK™ Z-1RB CORE DRILL 2 SPEED W/ STAND & ROLLING BASE CONCRETE CORING $1,025.00 |
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NEW 10″ Z-1B CORE DRILL 2 SPD W/ STAND CONCRETE CORING by BLUEROCK™ Tools $999.00 |
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Wet Cured Concrete Core Bit – 12 Inch x 14 oal $949.90 |
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Wet Cured Concrete Core Bit – 14 Inch x 14 oal $949.90 |
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Wet Green Concrete & Asphalt Core Bit – 12 x 14oal $949.90 |
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Wet Green Concrete & Asphalt Core Bit – 10 x 14oal $799.90 |
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NEW HILTI Core Bit DD-BL 8″/17″ P2: Item No.: 00282606 205mm concrete cement $749.00 |
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MILWAUKEE DYMODRILL 2-10″ CONCRETE WET CORE DRILL RIG $745.00 |
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Wet Cured Concrete Core Bit – 10 Inch x 14 oal $729.90 |
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HILTI DIAMOND CORE CONCRETE DRILL DD EC-1 120V 1350W $729.00 |
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10″ Z-1RB CORE DRILL 2 SPEED W/ STAND CONCRETE CORING by BLUEROCK™ Tools $725.00 |
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NEW 4″ Z-1B CORE DRILL by BLUEROCK™ 2 SPEED W/ STAND CONCRETE CORING $659.00 |
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NEW 10″ Z-1 CORE DRILL 2 SPEED W/ STAND CONCRETE CORING by BLUEROCK™ TOOLS $599.00 |
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14″ Supreme Wet Diamond Concrete Core Bit – 14″ length – Best on Ebay! $599.00 |
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12″ Supreme Wet Diamond Concrete Core Bit – 14″ length – Best on Ebay! $549.00 |
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New 14″ Laser-Welded Wet Diamond Core Drill Bit Concrete Bore Rig $499.99 |
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14″ x 187 Diamond Premium Core Bit Bore Drill Concrete $499.99 |
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1″ – 6″ Premium WET Diamond Core Drill Bit Core Bore Can drilling rig concrete $475.00 |
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1″ – 6″ Premium WET Diamond Core Drill Bit Core Bore Can drilling rig concrete $475.00 |
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Multiquip hand held concrete core drill $475.00 |
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10″ Supreme Wet Diamond Concrete Core Bit – 14″ length – Best on Ebay! $459.00 |
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Wet Green Concrete & Asphalt Core Bit – 6 1/2 x 14oal $439.90 |
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Concrete Core
self-cleaning coating Idrosil 1002 for cellular concrete
The insulating properties are especially important for cellular concrete.
The insulation factor is always given for dry products.
Because of the strong water absorption properties of cellular concrete this advantage is gone with wet walls.
A treatment of cellular concrete walls is necessary.
If a waterproof film is applied to the outer walls this creates condensation on the inside walls.
The walls should be treated twice.
After this treatment the walls are hermetically sealed.
This should be avoided to prevent frost damage.
For the moment there is special attention given to paintings with the best possible protection against water, but with completely vapour permeability.
Idrosil 1002 is water resistant but completely vapour permeable.
This treatment is designed for factory buildings, where cellular concrete is mostly used.
To assure hygiene, it requires frequent cleaning and is labour intensive.
The construction of industrial buildings and stables are generally made of concrete slabs and cellular concrete.
These materials do not allow efficient cleaning.
The dirt is nestled in the pores of the stone structures.
To solve the problem we developed a self-cleaning coating.
In an environment of animals the relative humidity is high; water is largely absorbed by the stone structures and forms the core of the problem.
The solution to the problem was found in the application of a water repellent hydrophobic layer.
The application must be economic, safe for human and animals and must be environment friendly.
Idrosil 1002 consists of an aqueous suspension, with other words, a stable distribution of fine solids in water.
Idrosil 1002 is a self-cleaning, water-repellent coating for concrete, cellular concrete and white painted facades.
The layer is completely vapor permeable. Therefore the substrate can dry continuously.
These properties avoid the formation of water sensitive bacteria, mould and algae.
Idrosil 1002 protects the surface against pollution and acid rain.
Idrosil 1002 is completely water based and can be applied with a brush, roller or spray gun
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About the Author
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Concrete $81.39 Concrete |
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Concrete Portable Handbook (Paperback) $81.75 Whether or not, you are on the job site or back in the office, this book will help you to avoid mistakes, code violations, and wasted time and money. The book`s four part treatment begins with constituent materials followed by self contained parts on Concrete Properties, Processes, and Concrete Repair and Rehabilitation. Designed to be an "all in one" reference, the author includes a wealth information for the most popular types of testing. This includes: Analysis of Fresh Concrete; Testing Machines; Accelerated Testing Methods; Analysis of Hardened Concrete and Mortar; Core Sampling and Testing; Assessment of Concrete Construction ; Repair; Quality Concepts; Quality Control; Statistics; Standards, Specifications, and Codes of Practice. With this book in hand, construction engineers and even technicians find valuable information regarding Exposed Concrete Finishes, Repairing Concrete, Formwork, Precast Concrete, Concrete Roads, and Industrial Floors. Project managers and owners will find this reference a valuable guide to concrete both in terms of its applications in construction projects and the science and chemistry of concrete for its own sake. Fundamentals of Concrete Chemistry Handy at your figure tip calculations Tips for working with all types of concretes Covers Roads, floors, and finishes Principles of Precast, Reinforced and Prestressed Concrete |
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CONCRETE CORE SECTION ANALYSIS