Snow can start falling in late August or early September, so any exterior concrete work poured during this season should plan for sudden cold weather. Curing concrete in these regions usually requires the use of solvent-based curing compounds or cure-and-seal chemicals to avoid freezing. Scheduling new exterior concrete work can be difficult, since concrete suppliers and installers are typically busy finishing as much work as possible before winter arrives. Cool temperatures allow year-round exterior concrete placement. Often winter transitions directly to summer. Climate (June - August): Warm days and cool nights are the norm for high-mountain summers. Hydration stabilizers and water reducers are commonly used to extend the working life of the concrete without affecting performance. The primary considerations include chemical set accelerators to help the concrete set faster and air-entrainment admixtures to help with freeze-thaw conditions. Proper planning and communication are keys to a successful winter pour. Just type Lsailor1 in the YouTube search bar. The farther north you go, the more severe the winters. Special Equipment: Pouring exterior concrete in the high plains regions in winter typically requires no additional or special equipment. Exterior concrete is poured year-round with precautions.Mix Designs: Cold-weather concrete mix designs are mandatory for all exterior concrete placed in this region during the winter. Air-entrainment admixtures should be mandatory in all exterior concrete placed in this region. Special Equipment: Sprayers to apply curing compounds; blankets for the rare late- season cold snap. Placement and Curing Practices: Windy and wet conditions can be common. Most exterior concrete work takes place during the summer in this region. Just remember that if your making your forms from foam you might have an issue with pressures inside the mold, 500lbs of concrete can exert a decent amount of sideways force, I was worried … Climate (May - September): Sunny and hot! Summer temperatures rise to the upper 90s and can exceed 100 F for long periods. Contact us and view our privacy policy, terms & conditions, and press room, Ground heaters if the ground is frozen prior to the pour, Concrete pumps to speed the placement of concrete in cold conditions, Curing blankets and non-water-based curing compounds, Proper cold-weather attire for crews pouring and finishing the concrete. Straight concrete mixes can also be used, as they tend to set faster than hybrid mixes. With professional assistance from R.G. Frost and freezing temperatures can start to become a factor later in the season. Eliminating fly ash and set retarders in mixes is normal as the temperatures start to decrease. Most areas experience hot to extremely hot conditions. Daytime temperatures can be very warm, with late afternoon thunderstorms and some severe storms common. Due to extensive freeze-thaw conditions, this region is prone to spalling and scaling concrete. Spring rains may occur for prolonged periods in early spring, but are rare after March. Mix Designs: When hot conditions exist, hydration stabilizers, fly ash, and water reducers are common admixtures used to extend working life without affecting performance. Very windy conditions can exist, especially in foot hill areas and flat plains regions. Along with the hot weather come winds, especially in the more open spaces of the western states. The threat of snow and freezing temperatures is usually gone by mid-April, but rain is always a consideration. Air-entrainment admixtures should be mandatory in all exterior concrete placed in this region. When we pour footings in heavy commercial we like to get at them early in the AM after a pour, at that time you can drive a 3 1/2" nail into the green concrete so we can fasten our wall kickers directly to the concrete … With cold temperatures, time is a factor, so pumping concrete becomes more common. Climate (April - May): Spring temperatures are cool and conditions can be wet. Along with the warmer weather comes the tropical monsoon season, with almost daily afternoon downpours of rain, sometimes with heavy winds. Mild temperatures are limited to within 10 miles of the coast, with all other regions experiencing hot to extremely hot conditions. Climate (June - August): Mild temperatures are the norm for this entire region. Coastal regions will see temperatures moderate earlier, while the deserts remain very warm. Air entrainment may be needed in high-elevation areas. Exterior concrete pours should be planned for the morning, with rain protection mandatory after the job is complete. Due to exposure of the hardened concrete to freeze-thaw conditions in winter, it is prone to spalling and scaling. Mix Designs: Standard mix designs are the norm. High-intensity sunshine with very low humidity is the norm. The last thing you want is for your poured concrete to be ruined by poor pouring or improper care. After that, it's way beyond 'begun' to set. In most areas, summer can be the most demanding time of year to pour exterior concrete. Proper water content and finishing are critical for long-term durability. Placement and Curing Practices: Transitional placement and curing practices are the norm, as temperatures will dictate cold- or warm-weather practices. To varying degrees, all areas have cold winters with snow, short springs, cool falls, and hot, humid summers. Fortunately, there are steps you can take to effectively tackle cold weather concrete … This is the dry season and conditions are most favorable during this time of year for exterior concrete work. Special Equipment: Reference both High Mountains Summer and Winter since this season can have elements of both climates. Due to exposure of the hardened concrete to freeze-thaw conditions in winter, it is prone to spalling and scaling. Climate (April - May): Spring is very short in the Mid-South region. When warmer than usual conditions exist, hydration stabilizers and water reducers are commonly used to extend the working life of the concrete without affecting performance. Proper mix design, placement, and curing are crucial for long-term concrete durability. Hydration stabilizers and water reducers are commonly used to extend the working life of the concrete without affecting performance. The use of fly ash is also common to help slow set time. Conditions tend to be milder and drier from east to west within the region. A sudden cold front or snow storm can arrive as early as September, but cold weather is usually not a factor until December. Most exterior concrete work takes place during the summer in the high-mountain region. In most cases the answer is YES! Climate (December - March): Winters are generally mild, with average temperatures in the low to mid 40s. Mix Designs: When hot conditions do exist, hydration stabilizers, fly ash, and water reducers are common admixtures used in this region to extend working life without affecting performance. Frost and winter freezing spells can occur, but do not last long. However, these occurrences are usually short lived. Pouring Concrete over the Existing One. Along with the warmer weather comes blazing sunshine, dry winds, and low humidity. It is true that concrete can be poured during cold weather. R.G. Most precipitation that falls is snow. In the hottest desert regions, most concrete placements take place before 10 a.m. On many larger projects, concrete is placed at night or during the early morning hours to avoid the extreme sun and heat of the day. Cold rain can continue into May, with cold temperatures beginning in early October. Ground frost can vary from several inches to none at all depending on where in the region you reside. Temperatures range from 60 F to 80 F, with freezing temperatures very rare. Because of the high average of sunny days and the sun's intensity at high altitudes, south-facing areas lose snow significantly faster than those on the north side or in shadowed areas. Proper planning and communication are keys to a successful winter pour. Cold weather protection overnight becomes more important the deeper into the fall season you pour. Most residential exterior concrete placement is suspended during the winter, with exterior commercial concrete placement taking place year-round. Considering concrete needs to dry once it is poured, many might be under the impression that a hot sunny day is ideal for it. Planning around rain is often necessary for exterior concrete pours. Placement and Curing Practices: Windy conditions can be common in the spring in western portions of this region. Snow is prevalent and can be on the ground for most of the season. Additional travel time can affect concrete performance, especially in very cold temperatures. Snow is rare along the coastal areas, but can quickly accumulate as you gain elevation traveling inland. With cold temperatures, time is a factor, so pumping concrete becomes more common. Concrete set time at 70 degrees is approximately 5 hours, at 50 degrees it is 10 hours, at 30 degrees it’s up to 20 hours (if the concrete … In the hottest western regions, most all concrete placement takes place before 10 a.m. On many larger projects, concrete is placed at night or during the early morning hours to avoid the extreme sun and heat of the day. With the combination of heat and wind, placement and curing of concrete in the summer can require extreme measures. Due to extensive freeze-thaw conditions, this region is prone to spalling and scaling concrete. Placement and Curing Practices: Cold-weather concreting practices will be dictated by the weather conditions on the day of the pour, which can range from cold weather to fair weather. Regions of high elevation (above 7,000 feet), Copyright 1999-2021 ConcreteNetwork.com - None of this site may be reproduced without written permission. Eliminating accelerators and adding fly ash into mixes is normal as the temperatures start to increase. Additional travel time can affect concrete performance, especially in very cold temperatures. Exterior concrete is poured year-round in this region. Mansfield States Included: North Carolina, South Carolina, Georgia, Mississippi, Louisiana, Alabama, Florida. For high elevation regions (above 3000 feet), cold-weather concreting practices and the use of curing blankets may be needed when temperatures fall below 40 F at night. Air-entrainment admixtures should be mandatory in all exterior concrete placed in this region. Climate (May - September): Hot and humid! Special Equipment: Reference high plains summer. Placement and Curing Practices: Mild temperatures and moderate humidity allow for relatively easy placement and curing of concrete in these regions during the winter. If pouring exterior concrete during March though May, both winter and spring conditions may exist, so plan accordingly and check the extended forecast before pouring. While concrete can be poured at any time of year and in nearly any location, there is an ideal range of temperature in which to pour concrete, and if it's too cold or too hot outside, … Climate Overview:The predominant weather is warm and humid. Rain can become more frequent, but it is still considered part of the dry season. Exterior concrete is poured year-round with precautions. Rain is unpredictable and can occur at any time of the day in the summer. Day time temperatures range from 40 F to 50 F. Prolonged periods of very cold weather are rare. Special Equipment: Sprayers to apply curing compounds and surface set retarders during hot weather. Due to exposure of the hardened concrete to freeze-thaw conditions in winter, it is prone to spalling and scaling. Rapid surface hydration is always a threat, so surface evaporative control agents and curing compounds are common on exterior concrete placements. Special Equipment: Sprayers to apply curing compounds and surface evaporative control agents; plastic sheeting for protection from rain. With terrain in the mountain regions often playing a factor, pumping concrete becomes more common. Rainfall averages from under 10 to 20 inches annually in the deserts of Utah and up to 40 to 50 inches in the mountains and valleys of Colorado. Gulf of Mexico moisture is a constant, leading to hot, humid summers and snowy overcast winters. 1249 Dueber Ave SW Canton, OH 44706 Mix Designs: Dealing with high humidity and warm weather can require the use of admixtures to extend the set time. Elevation dictates much of the climate in this region. Placement and Curing Practices: Cold-weather concreting practices are mandatory for all exterior concrete placed in this region during the winter. There are considerable temperature variations between the moderate coastal areas and the higher inland areas, but the limiting factor in all areas are cold temperatures. Placement and Curing Practices: Reference both High Mountains Summer and Winter since this season can have elements of both climates. In colder regions, 4000-psi concrete is often specified and set accelerators and air entrainment may be used if necessary. Climate (December - March): Winters are mild throughout most of this region. Climate (March - May): This region typically sees a wet and windy spring. Climate (December - March): Winters are typically cold, damp and overcast. Exterior concrete work takes place year-round in this region, but the weather is always a factor and needs to be monitored closely. The day time temperatures are typically mild, with cold nights. We will come out and give you our expertise about different conditions and share our knowledge on how to extend the life of your concrete. Ground frost can vary from several inches to none at all depending on where in the region you reside. Climate (April - May): Spring is very short in the Northeast. The use of water- or solvent-based curing compounds is always recommended to achieve quality concrete. Spring is typically cool and short, and summers are hot and humid. Rain is unpredictable and can occur at any time of the day. Air-entrainment admixtures should be mandatory in all exterior concrete placed in this region. The primary considerations include blankets for heat retention as well as the possibility of tenting in very cold conditions. Curing concrete in these regions usually requires the use of solvent-based curing compounds or cure-and-seal chemicals to avoid freezing. Air entrainment should be mandatory in all exterior concrete placed in this region. The high mountain regions have snow on the ground from October to June, while the more temperate valleys and plains typically do not retain snow very long after a snow event. Proper mix design, placement, and curing are crucial for long-term concrete durability. The high deserts start to experience the first hot weather in late spring, but overall conditions are still favorable for exterior concrete pours. Climate Overview:The climate in the Mountain West and High Plains is perhaps more varied than any other climate in the United States and Canada. If you are interested in … Proper water content and finishing are critical for long-term durability. Scheduling new exterior concrete work can be difficult, since concrete suppliers and installers are typically busy finishing as much work as possible before winter arrives. Hydration stabilizers and water reducers are commonly used to extend the working life of the concrete without affecting performance. Morning placement of concrete is also common to avoid the heat of the day and afternoon thunderstorms. Typically, after 24 hours the concrete has set enough that the rain will not harm the … Taking the temperature of the concrete when it arrives at the jobsite is important to ensure it is not too cold and prone to freezing before curing. 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