High Cement Content Problems Forest Hills 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

Ventura Masonry
(908) 289-0658
805 E Jersey St
Elizabeth, NJ
Jetco Unlimited Exterior Building Restoration & Maintenance
(201) 798-3178
268 New York Ave
Jersey City, NJ
Malatesta Paladino Inc
(718) 523-5656
13919 109th Ave
Jamaica, NY
Sanyo Enterprises Usa Inc
(718) 846-8100
11617 Sutphin Blvd
Jamaica, NY
Obama Inc
(718) 321-0380
13225 Maple Ave
Flushing, NY
E C Hufnagel Landscaping Inc
(201) 869-5680
51 Broad Ave Apt 1
Fairview, NJ
Anton Haddad Plumbing & Heating
(201) 792-1587
15 Saddlewood Ct
Jersey City, NJ
Villa Stucco
(201) 653-9447
54 Jefferson Ave
Jersey City, NJ
Mr B Home Repairs
(718) 206-4900
10640 Guy R Brewer Blvd
Jamaica, NY
Cotumaccio Luigi Masonry Contrctng Co
(718) 776-2661
9071 198th St
Jamaica, 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 Forest Hills 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.
- Fibers for Permeability Forest Hills NY
- Energy-Efficient Product Reviews Forest Hills NY
- Flashing in Siding Installations Forest Hills NY
- Galvanized Wall Ties Forest Hills NY
- Home Siding Tips Forest Hills NY
- Handling Siding Materials Forest Hills NY
- Galvanized Wall Ties Forest Hills NY
- Incorrect Testing Practices Forest Hills NY
- Eliminating Swirls in Precast Panels Forest Hills NY