Tag Archives: NCMA TEK

NCMA Solutions Center: What are the options available for water repellents for CMU?

November 2, 2018

NCMA eNews November 1, 2018 There are two types of water repellents for concrete masonry - surface treatments and integral water repellents. Surface treatments are applied to the weather-exposed side of the wall after construction. Integral water repellents are added to the concrete mix when the units are manufactured. There are a wide variety of…
Read more

NCMA Solutions Center: Are there ways to clean CMU walls?

October 23, 2018

NCMA eNews October 18, 2018 Yes, there are in general three ways a masonry assemble can be cleaned: water cleaning, abrasive cleaning, and using some form of chemical. Water cleaning method is effective for simple stains resulting from dirt, mild efflorescence, grease stains etc. Water cleaning can be done with or without pressure washing tools…
Read more

NCMA Solutions Center: Bracing CMU walls during construction

October 12, 2018

NCMA eNews October 4, 2018 While concrete masonry walls are being constructed, it is important to ensure the stability of the masonry walls to provide life safety and protection for construction workers. During construction, several strategies can be implemented to ensure life safety which include external and/or internal bracing of CMU wall, and having evacuation…
Read more