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Historic Preservation - Technical Procedures

Spectitle:

Replacing Loose, Broken Or Missing Individual Quarry Tiles

Procedure code:

0933002R

Source:

Hsr - Icc Building/Wash, Dc - Grier Brown Renfrow Architects

Division:

Finishes

Section:

Quarry Tile

Last Modified:

02/24/2012

Details:

Replacing Loose, Broken Or Missing Individual Quarry Tiles



REPLACING LOOSE, BROKEN OR MISSING INDIVIDUAL QUARRY TILES


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on replacing individual
         quarry tiles that are loose, broken or missing.

    B.   See 01100-07-S for general project guidelines to be
         reviewed along with this procedure.  These guidelines
         cover the following sections:

         1.   Safety Precautions

         2.   Historic Structures Precautions

         3.   Submittals

         4.   Quality Assurance

         5.   Delivery, Storage and Handling

         6.   Project/Site Conditions

         7.   Sequencing and Scheduling

         8.   General Protection (Surface and Surrounding)

         These guidelines should be reviewed prior to performing
         this procedure and should be followed, when applicable,
         along with recommendations from the Regional Historic
         Preservation Officer (RHPO).

1.02 REFERENCES

    A.   American Society for Testing and Materials (ASTM), 100
         Barr Drive, West Conshohocken, PA 19428, (610) 832-9585
         or FAX (610) 832-9555.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   American Olean Tile
         1000 Cannon Ave.
         Lansdale, PA  19446-0271
         215/855-1111

    B.   ProSoCo, Inc.
         755 Minnesota Avenue
         P.O. Box 1578
         Kansas City,  KS  66117
         800/255-4255 or 913/281-2700

    C.   Southern Grouts and Mortars
         1502 S.W. 2nd Place
         Pompano Beach, FL  33060
         800/641-9247

2.02 MATERIALS

    A.   Replacement quarry tile:  6" x 9" x 1/2" (American Olean
         Tile), or approved equal.

    B.   Solvent cleaner such as "Sure Klean Asphalt and Tar
         Remover" (ProSoCo, Inc.)

    C.   Dry-set mortar:  Medium-textured portland cement-based
         such as "#759 Floor Mix" (Southern Grouts and Mortars,
         Inc.)

    D.   Portland cement:  ASTM C150, Type I, grey

    E.   Sand (color to match existing mortar) should conform to
         the following size gradations:

         Sieve No.                     Percentage
                                       Retained

         No.   4                       0
         No.   8                       0
         No.  16                       5-15
         No.  30                       40-60
         No.  50                       75-85
         No. 100                       95-99

    F.   Gravel

    G.   Clean, potable water

2.03 EQUIPMENT

    A.   Chisel

    B.   Stiff bristle brush

    C.   1/4" x 1/4" grooved trowel

    D.   Putty knife

    E.   Joint tools

2.04 MIXES

    NOTE:  PROPORTIONS SHOULD BE MEASURED BY VOLUME.

    A.   Mortar Mix:  Comply with ASTM C 270.

         1.   1 part portland cement

         2.   3 parts sand

         3.   2 parts gravel

         4.   enough water to form a thick, workable mix

    B.   Grout Mix:

         1.   1 part dry-set mortar

         2.   enough water to form a thick, workable mix


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    A.   Mix grout and mortar for 3-5 minutes using a mechanical
         batcher (see mixes in Section 2.04 above).

         NOTE:  MIX ONLY ENOUGH MORTAR OR GROUT TO BE USED WITHIN
         2 HOURS OF FINAL MIXING.  DO NOT RETEMPER OR USE
         PARTIALLY HARDENED MATERIALS.

    B.   Remove damaged tiles using a chisel.  Take care not to
         damaged adjacent tiles.

    C.   Using a putty knife, scrape off old adhesive from floor.

    D.   Remove loose dirt from area using a stiff bristle brush.

    E.   Trowel on a layer of mortar.

    F.   Set tile and gently press into place.  Wipe excess mortar
         immediately from the surface.

    G.   Allow the mortar to cure for 16-24 hours.

    H.   When the tile is firmly set, press grout into the joints,
         filling them flush with the surface.  Tool so that joints
         are slightly concave.

    I.   Wipe excess grout immediately from the surface.

    J.   Keep masonry damp for a minimum of 48 hours or until
         mortar is fully cured.

                             END OF SECTION