MASONRY AND MORTAR FINISHES AND COLOR

3.6

The exposed surfaces of masonry and mortar repair shall match the finish,

color, texture, and surface detail of the original surface. Mechanical

finishing and texturing may be required to produce the required finish and

appearance. The finishing and texturing shall conceal bond lines between

the repaired area and adjacent surfaces. The texturing shall provide

replication of all surface details, including tooling and machine marks.

The equipment used in finishing and texturing shall be a low-impact energy

type which will not weaken the patch or damage the patch bond and the

adjacent concrete.

3.7

JOINT SEALING

Joint sealing shall be as specified in Section 07920 JOINT SEALANTS.

3.8

FINAL CLEANING

No sooner than 72 hours after completion of the repair work and after

joints are sealed, faces and other exposed surfaces of masonry shall be

washed down with water applied with a soft bristle brush, then rinsed with

clean water. Discolorations which cannot be removed by these procedures,

shall be considered defective work. Cleaning work shall be done when

temperature and humidity conditions allow the surfaces to dry rapidly.

Adjacent surfaces shall be protected from damage during cleaning operations.

3.9

PROTECTION OF WORK

Work shall be protected against damage from subsequent operations.

3.10

DEFECTIVE WORK

Defective work shall be repaired or replaced, as directed, using approved

procedures.

3.11

FINAL INSPECTION

Following completion of the work, the structure shall be inspected for

damage, staining, and other distresses. The patches shall be inspected for

cracking, crazing, delamination, unsoundness, staining and other defects.

The finish, texture, color and shade, and surface tolerances of the patches

shall be inspected to verify that all requirements have been met. Surfaces

exhibiting defects shall be repaired as directed.

-- End of Section --

SECTION 04900

Page 20