High Cement Content Problems Saratoga Springs 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

Lowe's Home Improvement Warehouse of Saratoga Springs
(518) 583-3777
50 Old Gick Rd
Saratoga Springs, NY
Pak American Building Supply
(718) 837-2228
8664 18th Ave
Brooklyn, NY
Parksite Plunket-Webster
(914) 834-8461
L W Ave
Larchmont, NY
Bargain Depot
(315) 337-1016
6895 Rome Oriskany Rd
Rome, NY
Woodstock Bldg Supl Corp
(845) 679-2516
72 Mill Hill Rd
Woodstock, NY
Allerdice Building Supply
(518) 584-5533
41 Walworth St
Saratoga Springs, NY
Bedrock Material Inc
(914) 423-6000
255 Lake Ave
Yonkers, NY
Simpson Strong-Tie Inc
(845) 279-2037
3 Susan Rd
Brewster, NY
Knapp & Schlappi Lumber Co
(315) 536-3383
273 Lake St
Penn Yan, NY
Chautauqua Brick Co Inc
(716) 386-3825
Bemus Pt
Bemus Point, 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