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
All American Mason Supply Inc
(718) 298-9800
14105 109th Ave
Jamaica, NY
Home Depot the
(585) 247-0220
2361 Buffalo Rd
Rochester, NY
Prior & Williams Lumber
(518) 766-2131

Nassau, NY
Rooftile & Slate Co
(914) 777-7225
416 Waverly Ave
Mamaroneck, NY
Burke Home Center
(315) 343-6147
38 E 2nd St
Oswego, NY
Sand Man Building Materials the
(718) 333-0900
26 Cobeck Ct
Brooklyn, NY
Steindl Cast Stone Co
(718) 296-8530
9107 76th St
Woodhaven, NY
Hep Sales
(315) 536-6072
225 E Elm St
Penn Yan, NY
Michael's Paving
(914) 962-7051
2463 Evergreen St
Yorktown Heights, 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
- Flue Liners for Masonry Chimneys Oswego NY
Building codes require that residential masonry chimneys with walls thinner than 8 inches (nominal) be lined with a fire clay flue lining, fire clay brick, or a material that resists corrosion, softening, and cracking from flue gases as hot as 1,800 degrees Fahrenheit.
- Handling Siding Materials Oswego NY
- Flashing in Siding Installations Oswego NY
- Eliminating Swirls in Precast Panels Oswego NY
- Energy-Efficient Product Reviews Oswego NY
- Home Siding Tips Oswego NY
- Galvanized Wall Ties Oswego NY
- Fibers for Permeability Oswego NY
- Galvanized Wall Ties Oswego NY
- Incorrect Testing Practices Oswego NY