K & C POWER HOUSE REPAIR

59 CLEAR LAKE ROAD NORTH, KAPUSKASING, ONTARIO, P5N 2X7

TEL: (705) 337-5211

FAX: (705) 335-6364

GROUTING PREPLACED AGGREGATES (CRUSHED ROCK)

Grouting of preplaced aggregates is a method of placing concrete in areas where conventional placement of ready mix concrete is impractical. The technique has been perfected and widely used by K & C POWER HOUSE REPAIR. It is especially useful in applications where access is a problem, and where a water tight bond is required. This method has been widely used successfully by K & C POWER HOUSE REPAIR in underwater applications. The technique will provide void free concrete with high compressive strength. The technique consists of placing, of reinforcing steel as required, same as on conventional methods. As the forms are placed, they are filled with washed and screen crushed stone, 1" to 1 1/2" in size. After all the forms are installed and filled with stone, they are pumped with a non-shrinking grout. A 2' x 2' pattern for pumping is used, to provide complete coverage throughout the pour. Typical applications are outlined below:

(i) K & C POWER HOUSE REPAIR was contracted to pour a number of openings in an exterior wall. The wall was originally built as a concrete structure with 5' x 20' glass block windows in it. Over the years, the glass blocks broke and were replaced with concrete blocks, leaving a non-air tight seal to the exterior. Due to the high humidity from the adjacent paper machine, large quantities of ice would form, during the winter, on the exterior wall causing a safety hazard below. A number of high voltage transformers are located on an adjoining roof 40 ft. below. Due to the location and poor access, it was recommended by K & C POWER HOUSE REPAIR, TO GROUT PREPLACED AGGREGATES.. The work was done late in the fall, mainly from the exterior to allow for continuous operation of the paper machine. The job was completed December 14, with no interruption in the production of paper and no damage to the transformers. The following winter, there was no ice build up along the wall.