Information is presented on prestressed concrete. Benefication of aggregate by heavy-media separation, elastic fractionation and hydraulic jugging and benefication of sand through attrition are discussed. Currently a reexamination of the effect of maximum size aggregates is being made, and significant results to date are included. The use of water-reducing, set-retarding admixtures is sometimes advantageous. Their application and use, together with precautions to be considered, are described. Thermosetting plastics, principally epoxy resins, have great versatility. Their application to bonding of concrete and their use in minor repairs are presented. Information is presented on the application of mortar lining and coating to steel pipe. Methods of test for pozzolan acceptance,... Less

FEATURES: Advanced rear port multi-chamber air intake. Polyester filter is designed specifically for wet cutting. Sealed SMART Ignition System: computerized timing that matches ignition sparks to engine load for greater efficiency. New airflow design increases surface area by 40% which when combined with SMART Ignition System lowers engine temperature by 100 degrees F (40 degrees C). Decompression valve for easy starting. SPECIFICATIONS: LENGTH: 18"WIDTH: 10"HEIGHT: 11.5" Bar Length: Up to 14" Horsepower: 5 hp (3.7 kW) @ 9500 rpm Engine Type: 2-stroke single cylinder air cooled Displacement: 4.7 cu. inch (76.5 cc)Noise Level: 100 dB @ 3 ft (1 m)Fuel Mix Ratio: 25:1 (4%) fuel-to-oilFuel Capacity: 0.23 gal (0.88 liter) 15-18 minutes run time per tankBuilt to meet the operational and... Less

The DustDroid™ 600 is designed for capturing the extra fine dust created by cutting, drilling, grinding and sanding materials such as concrete, masonry, stone, fiberglass and other construction materials. It produces 600 CFM and features a 30 gallon canister that is easily removed for emptying. Contractors like how the unit is price considerably lower than competitive HEPA vacuums and is powered by 120 volt current. This workhorse vacuum has fewer moving parts, and no solenoids, to require less maintenance and provide more reliable performance. The AirBlast™ filter cleaning system can be actuated while the vacuum is running, without interrupting work; and AirBender™ technology enables contractors to go up to 10 times longer between filter cleanings.

One-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation. Powder-coated chassis resists peeling & corrosion. Cast-aluminum hinged blade guard. Stainless steel water distribution system supplies water to both sides of blade. Blade guard mounts on both left- or right-hand side of saw and cuts within 2" of wall or curb. 1" blade shaft supported by two heavy-duty, self-aligning pillow block bearings. Depth control assembly engineered for smooth, controlled blade insertion. Durable 8" x 2-1/4" non-slip rubber wheels with maintenance-free hubs & roller bearings. Positive-locking depth control mechanism. Premium Series saws include built-in depth gauge, tach/hour meter, and lifting bail

Concrete Apprentice Tool Kit, Width (in.) 23-5/8, Length (in.) 10-5/16, Polyester Bag Construction, Includes 12 In. Wood Float, 16 In. Magnesium Float, 16 In. Cement Trowel, 5 In. Margin Trowel, 6 In. Stainless Edger, 6 In. Stainless Groover, Tool Bag

One-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation. Powder-coated chassis resists peeling & corrosion. Cast-aluminum hinged blade guard. Stainless steel water distribution system supplies water to both sides of blade. Blade guard mounts on both left- or right-hand side of saw and cuts within 2" of wall or curb. 1" blade shaft supported by two heavy-duty, self-aligning pillow block bearings. Depth control assembly engineered for smooth, controlled blade insertion. Durable 8" x 2-1/4" non-slip rubber wheels with maintenance-free hubs & roller bearings. Positive-locking depth control mechanism. Premium Series saws include built-in depth gauge, tach/hour meter, and lifting bail

CONCRETE HOUSING LIFTER This large mouth concrete housing lifting clamp is designed to handle 4" to 6" thick sections without damaging the concrete seat. Lifter works on a variety of housing shapes and chain legs allow for quick positioning to balance the load. Concrete housing lift attachment requires constant tension to maintain positive load contact, while reverse cam action design eliminates load slippage tendency. Heavy duty steel construction and clamps have a durable enamel finish. Meets ASME B30.9 & B30.20 standards.

Ramset Powder Fastening Systems M70 is a .22 caliber, single shot, trigger actuated tool for light and medium duty construction applications. It's the ideal tool for attaching 2 x 4's, furring strips, and electrical boxes to concrete and steel. It's designed for professional fastening results in a variety of concrete, masonry or steel applications, and requires a license to use. The m70 can fasten up to 3 inch drive pins with washer. The positive barrel and load retention prevents barrel from opening freely, allowing easy horizontal and overhead fastening, and the powder load automatically ejects after each use. The M70 is ergonomically designed for operator comfort, with a heavy-duty all-steel construction. Specifications: Uses standard .22 caliber single shot powder loads 2 (Brown), 3... Less

Concrete Tool Kit, Number Of Pieces 7, Includes Canvas Tool Bag, Finishing Trowel With Soft Grip Handle 14 X 4 Inches, Margin Trowel 5 X 2 Inches, Magnesium Float With Soft Grip Handle 16 X 31/8 Inches, Wood Float 12 X 5 Inches, Stainless Steel Concrete Groover 6 X 3 Inches With 1/2 Inch Groove, Curved End Edger 6 X 3 Inches With 3/8 Inch Radius, Tips Book

MDF15 Lightweight with aluminum construction this pneumatically powered air tool is hand operated and designed for a wide variety of surface preparation projects. This 55 - 1/2'' Aluminum Barrel Long Reach Air Tool works fast and easy for removing vinyl and ceramic tiles, carpet adhesives and material build-ups from floors and walls. Small size and high power output makes it useful for chipping away concrete and asphalt or removing slag and scale materials on industrial and marine job sites. 55-1/2 inch overall length without accessory tool. Features: -3,700 blows per minute -Designed for a wide variety of surface preparation projects -Hand operated -Lightweight -Pneumatically powered air tools -For hard to access areas on job sites Specifications: -Piston Bore: .72 inch (18.5 mm)... Less

This is the MK-1613 H Premium 18" Walk Behind Saw -- Honda 13 Hp Engine and this is just what you need! The saw has a 5 5/8" maximum depth of cut. The MK-1600 Series features a one-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation; Powder-coated chassis resists peeling & corrosion; Cast-aluminum hinged blade guard; Stainless steel water distribution system supplies water to both sides of blade; Blade guard mounts on both left- or right-hand side of saw and cuts within 2" of wall or curb; 1-1/4" blade shaft supported by two heavy-duty, self-aligning pillow block bearings; Depth control assembly engineered for smooth, controlled blade insertion; Durable 8" x 2-1/4" non-slip rubber wheels with maintenance-free hubs & roller bearings;... Less

jrqualitytools201 1 Store 12" CONCRETE FORM WIRE TWISTER HAND TOOL NEW FEATURES: HD Construction w/ Black Soft Grip Handle Self Spring Return Action Insert Hook Into Both Tie Loop End on Wire, Pull Twister then Tool will Automatically Twist the Wire Payment: We prefer You may pay instantly with PayPal by clicking the pay now button at the top. Return Policy: NO QUESTIONS ASKED! You may return the product within 30 days of receipt. Item must be returned in new condition, as received with all acco

NDTT HT-225A is a compact Concrete Testing Hammer, commonly used for testing of strength and hardness of various types of concrete materials. When testing the strength of concrete, the concrete test hammer uses a certain elastic force to transit the impact force of an impact hammer to the surface of concrete, its initial kinetic energy redistributes, a part of energy in the form of plastic deformation or residual deformation is adsorbed by the concrete, and another part of energy which is proportional to the surface hardness is transmitted to the impact hammer, making the hammer resilie to a certain height, then the strength of the concrete is derived from the proportional relation between the height of resilience and the concrete strength. With the merits of simple structure, easy... Less

Shop for Building Materials at The Home Depot. Create an energy-efficient and sustainable building with SmartBlock Insulated Concrete Forms. They are a lightweight polystyrene (EPS) stay-in-place concrete form that speeds construction and yields a highly insulated wall. The finished wall will be 5.75 inches of concrete core and 2.125 inches of EPS on each side. Acoustical applications and fire-retardant properties increase the value of this construction method.

Ramset Powder Fastening Systems COBIII Cobra .27 Caliber Strip Tool with 2-1/2-inch Pin Capacity ( 3-inch with washer) is a semi-automatic tool for general construction and remodeling jobs, such as attaching 2 x 4's, furring strips, and electrical boxes to concrete and steel. It incorporates a padded recoil-absorbing handle for smooth operation and fastens up to 3 inch drive pins with washer. Ideal for professional remodeling projects, such as attaching wood to concrete or steel. One strip of loads drives ten pins, allowing greater efficiency and less reloads. The Cobra has all metal housing for durability. Specifications: Uses .27 caliber 10-shot strip loads 2 (Brown), 3 (Green), 4 (Yellow), 5 (Red), Weight: 4.5 pounds, Length: 13-1/4-inch, Muzzle Bushing O.D.: 9/16-inch, Maximum Pin... Less

Concrete Decking Guardrail Clamp, Color Red, Steel Construction, Fits Up To 36 In. Slab, Standards Osha Compliant, For Use With 2 X 4 Or 2 X 6 Wood Beams, Includes Backup Safety Cable

This heavy-duty saw has a one-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation. Blade guard mounts on both left- or right-hand side of saw and cuts within 2" of wall or curb. Sales tax applies on shipments to CA and AZ. Freight charges based on delivery to a commercial or industrial address in the continental USA. For residential deliveries, lift gates or signature required there may be additional fees. Note: Commercial Addresses are zoned as commercial, if you run your business out of your residence that is not considered a commercial address. MK-1600 Series Features: * One-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation * Powder-coated chassis resists peeling & corrosion * Cast-aluminum hinged... Less

This heavy-duty saw has a one-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation. Blade guard mounts on both left- or right-hand side of saw and cuts within 2" of wall or curb. Sales tax applies on shipments to CA and AZ. Freight charges based on delivery to a commercial or industrial address in the continental USA. For residential deliveries, lift gates or signature required there may be additional fees. Note: Commercial Addresses are zoned as commercial, if you run your business out of your residence that is not considered a commercial address. MK-1600 Series Features: * One-piece box construction chassis made from 3/16" hot-rolled steel will not flex during operation * Powder-coated chassis resists peeling & corrosion * Cast-aluminum hinged... Less

Repair cracks in concrete and stop water. Indoor/Outdoor Cracks. Concrete floors, walls, driveways, patios. Comes with crack repair solution (polyurethane), 5,000+ PSI injection gun, aluminum injection ports, concrete drill bit.

The Orbiter bullfloat tilt bracket has a durable cast metal construction. The bracket tilts simply by turning the handle. It fits either 1 3/8" or 1 3/4" snap lock handles and will bolt to any two or four bolt bullfloat or larger fresnos. Compares to the Rock-It adapter.

1105426 Features: -Honda Engine.-Direct drive gearbox.-Compact, the clever design allows the to fit into the trunk or hatchback area of almost all cars and trucks..-Easy dump control handle.-Large capacity.-Extremel y portable wheelbarrow type multimixer.-Fully enclosed motor.-Removable drum allows loading and unloading by just one person.-Mixes up to 250 lbs of concrete, mortar, stucco, grout or wall mud.-Motor: Honda Gas Engine.-Drum Diameter: 24''.-Wheel Size: 14''. Construction: -Mix all types of construction materials in complete confidence. Specifications: -Drum Capacity: 5 cu. ft.-Batch Output: 200 lbs, 2 cu. ft.-Horsepower: 3 hp. Dimensions: -Discharge Outlet Height: 8''.-Weight: 101 lbs.-Overall Dimensions: 20.5'' H x 14'' W x 30'' D. Warranty: -1 Year limited warranty from date... Less

Concrete Moisture Encounter, Instant, Nondestructive, Moisture Content 0-6.9 Percent In Concrete, 7-40 Percent In Wood, 0 - 99 Percent Rh, Moisture Content Accuracy +/-0.5 Percent In Concrete, +/-0.5 Percent In Wood Pin Type Mode, Temp. Range (f) 32 To 104 Df, Display Backlit Lcd, Data Hold Yes, No Memory, Interface No, For Use With Concrete Floor And Foor Screeds, Wood, Humidity Range ( Percent Rh) 5-99 Percent Rh, Battery Type Pp3 9v, Includes Battery, Leather Pouch, User Guide

Shop for Building Materials at The Home Depot. Create an energy-efficient and sustainable building with SmartBlock Insulated Concrete Forms. They are a lightweight polystyrene (EPS) stay-in-place concrete form that speeds construction and yields a highly insulated wall. The finished wall will be 7.75 in. of concrete core and 2.125 in. of EPS on each side. Acoustical applications and fire-retardant properties increase the value of this construction method.

Aluminum frame construction. 1" diameter blade shaft with self aligning bearings. Sturdy single piece steel motor mount weldment to minimize vibration. Ergonomic folding handle bars. Cuts on both right and left side. Polly V-belt. Wet or dry cutting. Compact, lightweight, engineered for maneuverability and reliability. Can be used for wet or dry cutting. Corrosion resistant cast-aluminum blade guard. Built-in water distribution system supplies water to both sides of blade. Blade guard mounts on either left- or right-hand side of saw and cuts within 1" of wall or curb. 1" diameter blade shaft with self aligning bearings. Hinged blade guard provides easy access for blade changes and inspection. Folding handle bar for compact transport. Poly V-belt for positive power transmission. Sales tax... Less