For Teng Li of Teng Li & Associates, the challenge at John Wayne Airport was not only to avoid unsightly cracks and the maintenance issues they cause. He wanted to reduce the residual stresses already built up in the existing structures. After considering several options, he concluded shrinkage-compensating concrete was the best approach for addressing both the issues of cracking and stress build-up. Product used was Type K shrinkage-compensating cement.
Concrete Mix was used to level the seven concrete pads inside this airport's electrical and mechanical rooms. SET Control was used to extend the working time due to the hot temperature setting time and FLOW Control was used to enhance the flow consistency.
Project specifications for filling the trenches and holes in the upgrade of the runway lighting called for concrete to achieve compressive strength of 3,500 psi in four hours. Rapid Set Cement was used in the mix design and reached 3,500 psi in two hours, half the time specified, allowing the project to be completed sooner.
After 14 years of service, steel-ﬁber reinforced, post-tensioned, shrinkage-compensating concrete proves a cost-effective paving material for a joint-free airport taxiway. Product used was Type K shrinkage-compensating cement.
Rapid Set Cement is the Port of Seattle’s material of choice because it provides high initial strengths and a faster return to service with long-term durability. Rapid Set Cement concrete is used to perform the work overnight and the repaired sections returned to service each morning so that operations and flight schedules are not disrupted.
Five international projects show how construction products play a supporting role in industries where new technology rollouts, tight timelines, and sustainable design are the new normal. Products used include Cement All, Concrete Mix, Rapid Set Cement, SET Control, and TRU Self-Leveling.
The Puerto Rico International Airport had a yearlong maintenance program to repair the runways without having to shut them down. The maintenance crew successfully performed partial-depth concrete slab and joint repairs, and returned those repaired portions of runway back to service during a two-hour window to not disrupt scheduled flights. Products used include DOT Repair Mix, FLOW Control, and SET Control.
Can lighting was added to the pavement in the taxiways. Using Rapid Set Cement allowed the taxiway to be open to traffic on time each morning.
Once the new conduit and light cans were installed, Rapid Set Cement was used to produce a pre-approved concrete mix design to fill trenches and cores.
Based on the proven performance of Rapid Set® Cement Concrete in heavy-use pavement applications and harsh climates, it was chosen to replace 531 Runway 16C panels. Rapid Set Cement Concrete provided a rapid-setting, high performance concrete solution engineered to provide extended service life and significant savings in repair and replacement costs at SEA-TAC for many years to come.
The sustainability of concrete, the most widely used material in the world, is still a difficult concept to quantify. However, the Product Category Rules (PCRs) for concrete are a step in the right direction. This article focuses on the sustainability of materials used in civil infrastructure such as highways and bridges, but the concepts explored are also frequently applicable to materials used for building repair.
Sydney International Airport invited Volumetric Concrete Australia to perform slab replacement work on the East West Runway 25.
The U.S. Army Engineer Research and Development Center conducted four years of testing to determine the best option for rapid-setting concrete for repairs to military airfields. Product used was Rapid Set Cement.