Bench Pinning – GJ MacRae Foundation Repair

Bench Pinning Foundation Reinforcement (Hamilton)

gjmacrae — Fri, 14 Jun 2024 04:01:44 +0000

On interior of basement, prepare perimeter of repair area and remove all debris to clear access. Begin bench pinning sections around proposed interior foundation walls. Install angle of repose to engineered specifications and install vertical rebar (bent at a 90 degree) into existing footing/foundation walls as well as vertical rebar inserted into unexcavated ground at base of bench pin (leaving the underside of existing footing undisturbed in benching area). Install multiple levels of horizontal rebar into bench pins and tie into vertical rebar creating a mesh pattern. Once complete, form with timber and install 25 mPa concrete into forms. Vibrate with needle vibrator to ensure complete encapsulation of form. Once cured, remove forms. Repeat process until complete.

Remove and dump all debris. All labour and materials included.

Block Foundation Reinforcement with Bond Beam (Hamilton)

gjmacrae — Fri, 14 Jun 2024 03:47:09 +0000

Install inside shoring and pour fresh concrete footing.

Once footing is cured, rebuild foundation walls with 10” block from base of footing to underside of existing joistwork. Once complete, install top bond beam with horizontal rebar.

Remove interior shoring and remove and dump all debris.

Bench Pinning Underpinning with HSS Posts (Hamilton)

gjmacrae — Fri, 14 Jun 2024 01:02:26 +0000

On inside of basement, prepare perimeter of repair area and remove all debris to clear access. Begin bench pinning sections around proposed interior foundation walls. Install angle of repose to engineered specifications and install vertical rebar (bent at a 90 degree) into existing footing/foundation walls as well as vertical rebar inserted into unexcavated ground at base of bench pin (leaving the underside of existing footing undisturbed in benching area).

Install multiple levels of horizontal rebar into bench pins and tie into vertical rebar creating a mesh pattern. Once complete, form with timber and install 25 mPa concrete into forms. Vibrate with needle vibrator to ensure complete encapsulation of form. Once cured, remove forms. Repeat process until complete.

Once perimeter is complete begin excavations by hand and install HSS posts into concrete footings.