All Things Concrete

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August 03, 2023

Insulated Concrete Form (ICF) Buildings: How Tall?

The use of insulated concrete forms (ICFs) continues to expand around the world. Mordor Intelligence sees global residential ICF revenue expanding at a 4.91% CAGR through 2028. During the same period, the firm projects commercial ICF revenue increasing at a CAGR of 4.72%. Institutional revenue should expand at a 4.43% CAGR.

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July 27, 2023

Clinker Cooler Tech Reduces Emissions

Despite an increased use of supplementary cementitious materials (SCMs), demand for Portland cement continues to grow. In the past decade alone, Portland cement production increased from 75 to 95 million metric tons in the United States.

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June 22, 2023

The Housing Market & Other Factors Impact Cement Demand

What are the prospects for global cement demand in the near term? Following a post-Covid surge, emerging trends conspire to reduce cement demand. Limited residential real estate sales and construction is a key. In 2021, four-fifths of the increase in U.S. cement demand came from the residential side. View the most recent PCA forecast here.

Pouring concrete over rebar

June 08, 2023

Electrified Process Yields Low-Carbon Cement

There is more than 4 billion metric tons of concrete produced every year. That’s more than a thousand pounds for every one of the 8 billion people on the planet. The cement needed to produce all this concrete comes from clinker produced in giant kilns. What if it were possible to eliminate high-temperature kilns entirely? A new electrochemical process does just that.

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May 18, 2023

Concrete’s Resilience Needed Now More Than Ever

As MIT’s Concrete Sustainability Hub (CSHub) notes, “Infrastructure damage caused by natural hazards in the U.S. exceeds $50 billion annually, with losses from earthquakes, hurricanes, and fire averaging around $6 billion, $28 billion, and $15 billion, respectively. And, moreover, these costs are trending upward.”

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May 04, 2023

2023 ICF Builder Awards: Residential & Commercial Highlights

Today, ICF acceptance is surging in both the residential and commercial sectors. Research and Markets sees the global ICF market growing from $1.06 billion in 2023 to $1.46 billion in 2027. This represents an impressive compound annual growth rate (CAGR) of 7.4%.

Concrete 101

April 20, 2023

Wind Turbine Blade Recycling for the Concrete Industry

Inevitably, the boom in wind energy means a boom in blade recycling. Replacements are common as new designs emerge. Some blades fail, while others reach the end of their intended lifespan. At present, blade failure occurs at a rate of about 0.54% per year, or approximately 3,800 blades.

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April 06, 2023

3D Printed Concrete Structures: Two Stories and Climbing

The look of a curvaceous, beaded 3D printed concrete (3DPC) structure is unlike any other. It has been described as “waves frozen in concrete.” ICON’s equipment can print designs that “swoop, fold, and form half shells." From aesthetics to construction methods, 3DPC is radically different. This new construction method is proving to be fast, affordable, energy-efficient, and resilient. Structures resist hurricanes, tornadoes, wildfires, and heat waves.

Concrete Street Placement

March 23, 2023

Lime Clasts and Heat: The Romans' Secret Sauce

Ancient Roman seawalls owe their extreme longevity in part to their “self-healing” capacity. Exposure to seawater facilitated the continued growth of crystalline structures in the concrete. Researchers have also focused on volcanic ash as a secret to the durability of Roman concrete used throughout the empire. The ash came from Pozzuoli along the Bay of Naples.
Lime clasts may have also played a role. Lime clasts are millimeter-scale mineral features distributed throughout many Roman concretes.

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March 16, 2023

Reduced Emissions With Oxyfuel Kilns

There are circumstances when the air around us is simply not good enough – times when more concentrated oxygen works wonders. For example, oxygen aids climbers during ascents of Mount Everest. Oxygen also aids spent football players as they rest along the sideline.
Similarly, good things happen when cement kilns breathe oxygen instead of ambient air.

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PACA's Online e-Learning Center

The program is delivered in one (1) module and it should take approximately 30 minutes to complete.  You will receive a certificate of completion once you pass the quiz. The bookmarking feature will allow you to leave the course and resume where you left off when you return.

The Pennsylvania Aggregates and Concrete Association (PACA) is the industry’s unified voice, representing more than 200 member companies across the state.