If the temperature is lov.r while placing a vertical basement wall with concrete. what should you be concerned regarding the pour? Choose the best answer. .1";- Ensuring the proper placement and eliminating cold joints in the concrete .1"; Maintaining the proper rate of the pour to avoid cold joints .1";- Concerned whether the forms can withstand the rate of the pour during the cold temperatures ";- Concerned with increasing the rate of the pour lfthe ambient temperature increases and the concrete pour rate increases: what could be your concern regarding the concrete pour? -:"j:- Concerned that the increased rate of pour could cause a blow-out -:"j:- Concerned that the increased temperature could cause a blowout -:"j:- Not concerned since each ofthese variables will off-set each other .;"j:. Not concerned since in warmer temperatures blow-cuts are uncommon What is our concern with placing concrete in vertical sections? Choose the best answer. No concern except for w/c and temperature O Concerned with potential aggregate segregation O Not concerned except for rate of pour and temperature Concerned with many variables such as aggregate segregation, temperature, pour rateWhy is it important to keep the surface of the concrete slab moist? O to support anticipated structural loads O to prevent soil expansion O to decrease the amount of evaporation from the concrete surface; prevent cracking to increase the immediate air-moisture levelWhat is true about crazing? Choose all correct answers. Causes structural issues with the concrete O can be called pattern cracking O can be prevented by flooding the surface with water O can be identified by sense of touch; smooth micro-crackingWhat curing method is recommended where early strength gain in concrete is important? O membrane-forming curing compounds O plastic sheets O steam curing O wet coverings