Originally Posted by
Chad Fabry
Freeze thaw cycles aren't much of an issue in North Carolina and even if they were, a simple parget coating would fix the problem.
Parge isn't a word. Neither is parging.
From the IRC.
R1001.8 Smoke chamber. Smoke chamber walls shall be constructed of solid masonry units, hollow masonry units grouted solid, stone or concrete. Corbelling of masonry units shall not leave unit cores exposed to the inside of the smoke chamber. When a lining of firebrick at least 2 inches (51 mm) thick, or a lining of vitrified clay at least 5/8 inch (16 mm) thick, is provided, the total minimum thickness of front, back and side walls shall be 6 inches (152 mm) of solid masonry, including the lining. Firebrick shall conform to ASTM C 27 or C 1261 and shall be laid with medium duty refractory mortar conforming to ASTMC199. Where no lining is provided, the total minimum thickness of front, back and side walls shall be 8 inches (203 mm) of solid masonry. When the inside surface of the smoke chamber is formed by corbeled masonry, the inside surface shall be parged smooth.
R406.1 Concrete and masonry foundation dampproofing.
Except where required by Section R406.2 to be waterproofed, foundation walls that retain earth and enclose interior spaces and floors below grade shall be dampproofed from the top of the footing to the finished grade. Masonry walls shall have not less than 3/8 inch (9.5 mm) portland cement parging applied to the exterior of the wall. The parging shall be dampproofed in accordance with one of the following:
From the IBC.
1807.2.2.1 Surface preparation of walls.
Prior to application of dampproofing materials on concrete walls, holes and recesses resulting from the removal of form ties shall be sealed with a bituminous material or other approved methods or materials. Unit masonry walls shall be parged on the exterior surface below ground level with not less than 0.375 inch (9.5 mm) of portland cement mortar. The parging shall be coved at the footing.Exception:
Parging of unit masonry walls is not required where a material is approved for direct application to the masonry.
parge
One entry found.
parge
Main Entry: parge
Pronunciation: \ˈpärj\
Function:
transitive verb
Inflected Form(s): parged; parg·ing
Date: 1701
: parget parget
2 entries found.
parget[1,transitive verb]parget[2,noun]
Main Entry: 1par·get
Pronunciation: \ˈpär-jət\
Function:
transitive verb
Inflected Form(s): par·get·ed
or par·get·ted; par·get·ing
or par·get·ting Etymology: Middle English
pargetten, from Middle French
parjeter, literally, to throw out, from
par- thoroughly (from Latin
per-) +
jeter to throw — more at
jet Date: 14th century
: to coat with plaster;
especially : to apply ornamental or waterproofing plaster to
Main Entry: 2parget Function: noun
Date: 14th century
1 : plaster, whitewash, or roughcast for coating a wall
2 : plasterwork especially in raised ornamental figures on walls
There is no mortar in concrete. It's cement. What fills the void between coarse aggregates is called paste.
And there is no cement driveway, it's concrete. Concrete and mortar have portland cement in them. The "paste" is cement and water, even the fines (like sand) are "aggregate". Concrete is "plastic" until it sets up (hydrates and cures), then concrete is no longer plastic.
Concrete does two things: 1) it gets hard; 2) it cracks.