![]() Water is both the friend and foe of mortar and concrete. Consider putting up wind barriers to protect your work and secure the area with plastic sheeting. For this reason, it’s important to make the necessary arrangements to tackle the risk before laying concrete or placing mortar in a windy area. Severe wind can cause premature drying as a result of increased evaporation. Cement will not hydrate sufficiently at low temperatures (hydration will virtually stop below three degrees Celsius), which increases the likelihood of slow setting and poor strength gains, as well as frost damage and freeze-thaw attack on hardened mortar or concrete. The usability and strength of mortar is affected by temperature, and additional care must be taken when working with a mortar mix in colder conditions. Preparing for frostĪ critical factor for works carried out in cold weather is ensuring that the mortar or concrete has adequate heat for normal cement hydration. ![]() As such, those planning outdoor building projects should consider winter specific complications, and most importantly, plan ahead in order to execute their operations effectively. When the first frosts bite, even the most thought out of projects can experience kinks in productivity. With the colder months approaching, the construction industry has an altogether different and challenging task on their hands. Gareth Davies, technical advisor at Tarmac Cement offers some essential advice to builders on working with cement in the colder months.
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