Materials you will need: burlap, cardstock, ruler, X-Acto knife, computer, inkjet printer. 1  Measure out your piece of burlap to 8.5 by 11. Use the X-Acto knife to cut it. 2  Repeat with the card stock. 3  Use the masking tape to affix the burlap to the card stock. 4  Make sure your printer settings are set to Heavy Duty.
Ideally, concrete should be poured when the air temperature is between 50 and 90 degrees Fahrenheit. Cold temperatures slow the concrete-setting process, and when temperatures dip below freezing, the delay allows the water in the mix to freeze before the concrete hardens.
ECS recommends that you review the guidelines presented in ACI 360R before beginning a cold weather concrete pour. ACI 306R provides additional guidance on the types and duration of protective measures that may be necessary for cold weather concrete placement.hen concrete is placed at cold temperatures, hydration can be slowed-and even stopped-which impacts finishing and curing times. Another concern is the permanent damage that concrete may experience if it freezes at an early age.