Step- 1. EXPOSE AND EVALUATE RETAINING WALL Step- 2. …

VOIDSPAN INSTALLATION GUIDE #W1 JET CLEANING AND WATER MANAGEMENT

Intent of Work- To stabilize dry-laid or partially mortared stone retaining wall construction by consolidating it with solidifying grout. Suitability- The work described herein is best suited for conditions where there is little or no binding mortar within mass stone retaining wall masonry and removal of remaining soil and mortar material will not cause a collapse (otherwise the wall will need to be laterally braced). Required Materials, Products and Equipment- VoidSpan 500 Series PHL Gravity Feed Grout or 600 Series PHLc70 Injection Grout Masonry mortar materials and potable water VoidSpan 1200 Series Jetting Wands VoidSpan 3000 Series Standpipe Piezometers (if utilized) VoidSpan 4000 Series Pressure Pot (or equivalent pressure regulating pump) with 5/8" ID feed lines (if utilized) Color matching repair mortar (if needed) Scope of work- 1. EXPOSE AND EVALUATE RETAINING WALL- A Geotechnical or Structural Engineer should be consulted for walls over four feet tall. Determine requirements and limits for Steps 3 to 6, 7 2. RE-SET FALLEN STONES- Dry set these or with concealed blobs of mortar 3. BRACE REMAINING WALL FACE IF NEEDED- See Step 1 4. JET CLEAN INTERIOR CAVITIES TO REMOVE SOIL- See Step 1 5. BRACE REMAINING WALL FACE IF NEEDED- See Step 1 6. JET CLEAN INTERIOR CAVITIES TO REMOVE SOIL- See Step 1 7. SEAL WALL FACE FOR GROUT- Utilized a grout proof removable material are recessed stay-in-place mortar 8. GROUT WALL STARTING FROM BOTTOM- See INSTALLATION GUIDES "G1, G2, G3" 9. CONTINUE TO GROUT FILL WALL 10. REMOVE TEMPORARY SEALER 11. INSTALL WEEP SYSTEM- See step 1 Responsibility- It is the responsibility of the Specifying Engineer to determine the specifics of the structural design and use of the VoidSpan Reinforcement System and to confirm its appropriateness for the application. Note that the details and suggested methods are presented herein as schematic representations only, and actual field conditions will vary. It is the responsibility of the System Installer to understand the requirements of the installation and execute the installation in a safe and correct manner.

PLEASE NOTE: The information presented herein is the intellectual property of VoidSpan Technologies, LLC and may not be reproduced or distributed without prior authorization.

OUTLINE SPECIFICATION (See DETAILS on second page)

JET CLEANING AND WATER MANAGEMENT- Installation Guide # W1

© 2017/ VoidSpan Technologies, LLC / 60 Washington St., Salem, MA 01970 / 800-966-VOID / www.voidspan.com

Step- 1. EXPOSE AND EVALUATE RETAINING WALL

Step- 2. RE-SET FALLEN STONES 3. BRACE REMAINING WALL FACE IF NEEDED 4. JET CLEAN INTERIOR CAVITIES TO REMOVE SOIL

Evaluate condition and stability of wall construction

Clean out cavities with VoidSpan J-1 or J-2 Pressure Washer Jetting Wands

Carefully remove vegetation and topsoil

Finish- 9. CONTINUE TO GROUT FILL WALL 10. REMOVE TEMPORARY SEALER 11. INSTALL WEEP SYSTEM

Fill core with VoidSpan PHLc Gravity Feed Grout or 70 Injection Grout in multiple low lifts

STONE RETAINING WALL CONSOLIDATION w/ PHLc GROUT

Step- 5. BRACE REMAINING WALL FACE IF NEEDED 6. JET CLEAN INTERIOR CAVITIES TO REMOVE SOIL 7. SEAL WALL FACE FOR GROUT 8. GROUT WALL STARTING FROM BOTTOM

Re-set fallen stones in proper position

Brace wall if needed to retain stones if needed

© 2017/ VoidSpan Technologies, LLC / 60 Washington St., Salem, MA 01970 / 800-966-VOID / www.voidspan.com

Low-pressure inject with VoidSpan Standpipe Piezometer

Gravity feed grout into wall, or

Seal wall face with removable insulation or clay, or recessed pigmented pointing

Continue to grout fill wall, working from bottom to top

Remove temporary sealing material

Core drill grouted wall and insert filtered drainage weeps

JET CLEANING AND WATER MANAGEMENT- Installation Guide # W1