High Cement Content Problems Oswego NY

Portland cement gives a mortar added durability, high early strength, a consistent hardening rate, and high compressive and bond strengths. However, mortar with excessively high cement contents can affect water permeability and durability of the masonry.

Local Companies

Raby's Ace Home Ctr
(315) 342-9663
247 Washington Blvd
Oswego, NY
Four Seasons Window & Siding
(315) 394-1931
41 Richardson Rd
Ogdensburg, NY
Cny Commercial Door
(315) 437-6504
5990 Drott Dr
East Syracuse, NY
Switzer Sales Corp
(716) 625-9116
6701 S Transit Rd
Lockport, NY
Hep Sales
(607) 347-4177
12 Utility Dr
Ithaca, NY
Burke Home Center
(315) 343-6147
38 E 2nd St
Oswego, NY
Ivy Hill Supply
(631) 694-0100
885 Conklin St
Farmingdale, NY
Riverhead Building Supply Corp
(631) 231-1600
400 Motor Pkwy
Hauppauge, NY
Farr Building Supplies
(716) 326-3345
10 Spring St
Westfield, NY
Dream Windows
(631) 998-3424
29 Montauk Hwy
Westhampton, NY

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: December 1, 1990


Portland cement gives a mortar added durability, high early strength, a consistent hardening rate, and high compressive and bond strengths. However, mortar with excessively high cement contents can affect water permeability and durability of the masonry. Water permeability is increased for three reasons. First, mortars with high cement content have greater shrinkage and more frequent shrinkage cracks. Shrinkage cracking often takes the form of evenly spaced vertical cracks in bed joints and evenly spaced horizontal cracks in head joints. The mortar may also separate or pull away from the body of the brick at the bond interface. Although high cement content mortar itself is less permeable, water can penetrate the shrinkage cracks. The second reason that high cement content mortars may increase water permeance is that these mortars are stiff and not easily workable. Because of this, good bond may not be achieved at the time of construction. Finally, the high strength (high cement content) mortars are hard (brittle) and don't easily accommodate movement of the masonry (due to environmental changes or foundation settlement) and therefore may result in cracking of the masonry wall. Cracks make the walls more susceptible to freeze-thaw deterioration even though hi...

Click here to read full article from Masonry Construction

Related Articles
- Home Siding Tips Oswego NY
After installing window and door trim, either make flashing using a sheet metal brake or apply flashing pre-bent to the correct trim size. Nail your flashing to the wall, not to the trim, because if you put holes in the flashing, you've defeated its purpose.
- Energy-Efficient Product Reviews Oswego NY
- Eliminating Swirls in Precast Panels Oswego NY
- Galvanized Wall Ties Oswego NY
- Fibers for Permeability Oswego NY
- Flashing in Siding Installations Oswego NY
- Handling Siding Materials Oswego NY
- Galvanized Wall Ties Oswego NY
- Flue Liners for Masonry Chimneys Oswego NY
- Incorrect Testing Practices Oswego NY