Hot and Windy Weather Concrete in Midland

In Midland the weather is a mix design input. A slab placed on a 100 degree afternoon with a steady wind loses surface water faster than the bleed water can replace it, and the result is plastic shrinkage cracking, a crusted surface or a finish that cannot be closed. In 2022, Midland recorded 33 days reaching at least 100 degrees F. The record is 65 such days in 2011, and its highest recorded gust reached 93 mph on June 26, 2007. Those are not rare events here, so we treat them as the baseline.

We handle placement and finishing in hot, windy weather for slabs, pads, paving, walls and site work. The methods are well known and they work when they are applied together: a mix designed for slower set, cooled materials, shaded or wet subgrades, windbreaks, evaporation monitoring, early and continuous curing, and a crew sized to finish before the surface dries out.

The sections below describe the owners we do this for, how we plan around site conditions, what concrete trade partners handle, and what these measures cost.

Energy owners call us for pads, yards and facility floors that cannot wait for cool weather. EIA reported Spraberry output above 1.3 million barrels of crude a day in April 2022, and the Spraberry Trend, the third-largest U.S. oil field by remaining reserves, underlies much of Midland County. Oil, gas and midstream schedules follow production, not the thermometer, and large slabs often fall in July.

Airport and public owners are in the same position. The City of Midland broke ground on October 29, 2025 on a terminal expansion at the airport that adds four TSA checkpoint lanes, expandable to six, as part of $150 million in city improvements, with completion expected in 2027. Public works projects of that kind include summer pours for aprons, curbs and sidewalks, and the owner expects durable finish regardless of the forecast.

We look at orientation, exposure and surroundings. A slab on an open yard with a prevailing wind faces much faster evaporation than the same slab inside a partly built shell. We ask where the wind comes from, what can be used as a windbreak, whether shade is possible and how far the batch plant sits from the site.

Haul time matters. The I-20 corridor gives good access: in Midland County I-20 has exit 126 for FM 1788 and SH 349, exit 131 for SH 158 and Loop 250, and exits 143 and 144 for Loop 250 and Business I-20 toward Midland. Even so, a long trip in summer shortens the working window. We choose pour times that match the plant's haul time to the site and tell the supplier to hold water on the truck in case adjustments are needed.

The structure itself changes the exposure as the job advances. Once walls or a roof are up, wind drops and shade appears, and an early-morning slab on the south side of a building may need different treatment from an afternoon slab on the north side. We update the plan for each placement, so a protective measure that was needed in June is not carried into a calm October pour without reason, and one that was skipped in May is added when the forecast changes.

The concrete package includes placing the mix, screeding, floating and final finishing, followed immediately by the specified curing compound or covering. In hot, windy weather, the order of work matters. Finishers follow the placers closely, bull floats are used while the surface is still wet, and curing starts as soon as the sheen leaves, before the surface dries.

We bring the equipment this weather demands: evaporation retarder sprayers, wind screens, shade structures, fogging equipment and extra water. We coordinate partners for pumping, testing and surface treatments so that everyone arrives with the same plan. The earthwork trade partner prepares and wets the subgrade ahead of concrete placement, following the sequence we coordinate.

Before the pour, we wet the subgrade without leaving standing water, shade or cool forms and reinforcing steel, and set windbreaks upwind. The mix may include a retarder, adjusted cementitious materials and chilled water or ice. During placement, we check concrete temperature at the truck and monitor air temperature, humidity and wind speed to estimate the evaporation rate.

When the rate approaches the limit, we respond: fogging, evaporation retarder, a smaller placement area, or a pause until conditions improve. After finishing, we cure with wet coverings or compounds, then protect the edge and exposed surfaces from wind. These steps are documented, and the log is part of the quality record the owner receives. The opposite problem, freezing, gets its own plan under cold weather concrete.

The added cost comes from cooled materials, admixtures, extra labor, shade and wind protection and sometimes night work. Placing at night avoids the worst of the heat and wind, but it adds lighting, overtime and sometimes noise restrictions. We list each measure as an option with its price, so the owner can choose how much protection to buy for a given slab.

A cheaper approach exists in some cases, such as moving the pour to early morning. We offer that option when the schedule allows. The wrong approach costs more than any measure on the list, since a cracked and crusted slab means grinding, patching or replacement. We encourage owners to compare protection costs against the cost of remediation.

Specifications commonly cap the temperature of concrete at placement and require measures when the evaporation rate reaches a limit. They may also call for specific curing methods and durations. We follow the specification and the adopted building code, and when the project includes a hot weather plan requirement, we prepare it ahead of time.

Special inspectors often verify the concrete temperature at delivery and the sampling of cylinders, and they can reject loads that exceed the limit. We make sure the supplier knows the limit, we check temperatures ourselves with a probe and we keep records of the readings. At the airport, where the longest runway, 16R/34L, is 9,501 feet by 150 feet, wide open exposure makes apron and ramp pours particularly sensitive to wind.

Tell us the slab size, the pour date and the specification requirements. We will propose a hot weather plan with options and prices, and coordinate it with your supplier.

What is plastic shrinkage cracking?

These are cracks that form in the first hours when the surface loses moisture faster than the concrete brings water to the top. Wind, heat, low humidity and a dry subgrade all contribute. We use windbreaks, fogging, retarders and early curing to reduce the risk.

Can you pour during a Midland summer afternoon?

Sometimes, but we prefer early morning or evening for large slabs. If the schedule demands an afternoon pour, we add cooling, shade and evaporation control, and we reduce the area placed at a time.

Should extra water be added on site to help finishing?

No. Extra water cuts strength and raises shrinkage. If the mix needs adjustment, we do it with admixtures approved by the engineer and supplier.

How do you decide when to stop a pour for wind?

We measure wind and evaporation rate, and the foreman has authority to stop if limits are exceeded. The decision is shared with the general contractor so everyone knows why the pour paused.