Jordan Smith explains why freshly placed concrete slabs are kept wet during the intense Texas summer heat, using a newly poured foundation as an example. He breaks down the basics of concrete curing, how reinforcing steel and concrete work together, and why excess mix water is needed for placement but not for strength. The focus is on preventing rapid surface evaporation, which can lead to shrinkage cracks and a weaker top layer before the concrete has time to cure properly. Smith also discusses the reality that concrete will always crack to some degree and why keeping the surface damp for several days remains one of the most effective ways to improve concrete curing and reduce cracking in hot weather.
https://buildshownetwork.com/contents/the-number-1-concrete-curing-mistake-in-hot-weather
Amtrak, cities and states get $5.3B in federal rail grants
Using funds from the 2021 Infrastructure Investment and Jobs Act, the Federal Railroad Administration awarded grants to 41 projects across 23 states.
Approximately $3.2 billion is allocated to improving highway-rail grade crossings, rail bridge repairs and replacement, station improvements and other projects.
https://www.smartcitiesdive.com/news/fra-passenger-rail-grants-amtrak-cities-states/827965
Robot security dogs, perimeter drones curtail construction site theft
A leading provider of automated robotic security solutions is helping improve security and reduce theft at construction sites with its customized robot and drone technology platforms, each bearing 24/7 AI-powered and human monitoring services. Asylon’s robotic DroneDog can patrol construction sites with enhanced capabilities compared to stationary security cameras. The high-endurance and agile security robot serves as a key component of a comprehensive perimeter security solution. DroneDog modernizes security measures while offering cost reduction opportunities when compared to traditional guarding services. The robot is built and programmed to improve security through human-monitored alarm response and perimeter patrols.
DroneDog is enhanced with a proprietary PupPack security payload that is fixed on top of the robot and connects to the cloud for remote operation and live streaming. All video is securely stored on U.S. servers. The security payload is where much of the technology lives that makes DroneDog an effective security tool. Included in the PupPack is a thermal camera with 20X optical zoom, AI/ML classifiers, cloud connectivity, an expandable payload port, and anti-theft technology. When DroneDog is not on a security mission, it returns to its DogHouse. The enclosed, ruggedized case can be kept outside and enables protection from the elements while allowing batteries to rapidly recharge for the robot’s next mission. — Asylon Robotics, www.asylonrobotics.com
CONFAST Offers MKT American Made Sup-R Stud® + Zinc Plated Wedge Anchor
Products Features
- ZINC PLATED: Helps prevent rust in dry environments; dependable application and maintenance
- Uncracked Code Approved: ICC-ES ESR-3782 MDCPCA
- Approvals: G.S.A. Spec FF-S-325C, Group II, Type 4, Class 1
- Approvals: Miami Dade NCA No: 10-0928.01
- WIDE RANGE OF SIZES: Ensures correct fastener for effective results
- FOR USE IN CONCRETE ONLY: Provides most consistent holding values; secure application
- PACKAGED WITH IMPORTED NUTS AND WASHERS: Fast, quick, complete installation
- HOLE SIZE IS ANCHOR SIZE: Quick and easy installation; simple to order
- https://www.confast.com/product-1-4-x-1-3-4-mkt-sup-r-stud-anchor/
Why We Use Rebar in Concrete Video.
I was at CONEXPO-CON/AGG 2026 and could see the impressive Caterpillar Machine Demo from my hotel room. I did make time to get over to watch the Caterpillar demo live. As a semi techie, the sensors and cameras they have added to their equipment did impress me. But there is so much to see and cover I didn’t see everything. This is why I wanted to share this link and better round up from Heavy Equipment Guide below compared to what I could have put together.
CONEXPO-CON/AGG 2026 roundup: earthmoving equipment highlights
At North America’s biggest construction show, OEMs debuted earthmoving machines that are more connected, powerful, and precise.
Connectivity, ease of operation, and productivity-boosting technology features were common among earthmoving introductions. Notably, 2D machine control is now included as standard on many new machines, which will make operators faster and more accurate and help new operators learn quicker on the job.
OEMs are designing equipment that delivers greater power, expanded capability, and more attachment versatility while reducing fuel consumption.
Take a look below at some exciting new earthmoving equipment introduced at CONEXPO-CON/AGG 2026, including excavators, dozers, and motor graders.
