Exposed Surface

Firstly, What is Carbonation? Let’s hear from some of the experts in the concrete industry. “Carbonation occurs when CO2 (carbon dioxide) from the air penetrates into the porous concrete and dissolves in free water to form a mildly acidic solution. ... Read More

Let’s kick this one off with a generalisation. You know all generalisations are dodgy, right? The only dodgy thing about this one is it is a little simplistic. Apart from that, it captures an important truth for the concrete industry: ... Read More

Hot weather? What’s the impact? Well, high temperatures do force rapid curing. There’s no doubt everybody wants things sooner than ever before. With increasing time pressure on precast production lines and construction sites, it may be tempting to hurry the ... Read More

When was the last time you walked into a shopping mall and thought, “Hey, what a great floor!”?   Retail floors are underfoot and overlooked, as shoppers bustle their way through. That doesn’t mean those floors are unimportant!   We’d ... Read More

We’ve all noticed how construction schedules in all sectors are getting tighter. And 2020 has done nothing to help the craziness! In this 2-minute read, we’d like to focus on the education sector, and how Markham can play a part ... Read More

Whether basement or above ground, concrete car parks are under a high level of situational stress. Traffic load and abrasion; carbonation from exhaust fumes; exposure to moisture-borne contaminants carried in by tyres; and for roof decks, total exposure to the ... Read More

The agricultural industry uses a number of chemicals which by their nature are highly reactive, and by their components are hazardous for concrete service life. Markham saving the world one concrete structure at a time Sulphates and phosphates? Sulphates and ... Read More

In the context of construction, there is sometimes a tension or conflict between the short-term cost or time constraints, and the long-term durability of the structure. ‘Cutting corners’ may achieve the immediate requirements of the contractor and the client, but compromise ... Read More