All Things Concrete

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February 22, 2024

Understanding Whole Life Carbon in the Concrete Industry

Proficient carbon calculations are increasingly important as “Buy Clean” legislation proliferates. New York and Colorado are among the states that now require carbon calcs for public projects. An estimated 40% of emissions are from the built environment. According to one estimate, the planet’s total building floor area will double by 2060. This makes the concrete industry a key player in the quest for net-zero emissions products and projects.

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February 15, 2024

California: Coal-fired Cement Plants to Net Zero by 2045

The Natural Resources Defense Council (NRDC) notes that cement production is “so carbon intensive that even though cement makes up less than 15% of concrete by weight, it accounts for 90% of concrete’s carbon footprint.” The use of fossil fuels to fire cement kilns is a key source of these carbon emissions.

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February 08, 2024

Toward Net Zero Concrete: Global Initiatives

In the quest for reduced greenhouse gas (GHG) emissions, everyone has a role to play. In the concrete industry, this includes everyone from manufacturers to contractors, and from trade associations to governments. Here is a review of some of the major initiatives impacting concrete’s sustainability.

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February 01, 2024

Graphene-Infused Metakaolin for Stronger Concrete

Ordinary Portland cement (OPC) requires high-temperature calcination of limestone. It is possible to use various emissions-reducing pozzolans in concrete. Fly ash comes from coal-fired power plants. Ground granulated blast furnace slag (GGBFS) comes from steel mills. Another SCM is metakaolin derived from kaolin.

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December 08, 2023

Reducing Kiln Emissions with Plasma Torches and More

Cement kilns are a two-pronged source of carbon emissions. Traditionally, fossil fuels heat cement kilns to the required temperatures. In turn, this heat breaks down limestone and other carbonate-rich materials, releasing carbon dioxide in the process. To monitor the process, the Environmental Protection Agency (EPA) requires cement plants to comply with its Greenhouse Gas Reporting Program (GHGRP).

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December 01, 2023

Portland Limestone Cement: Rapid Adoption

Concrete is everywhere. By mass, it represents more than half of all manmade materials produced annually. Unfortunately, the Portland cement used as a binder is emissions-intensive. Global cement production totalled 4.1 billion metric tons in 2022. Just over half of that came from one country - China. On average, U.S. clinker production is responsible for about 842 kg of CO2 per ton of Portland cement produced.

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October 26, 2023

ICF Homes: Separating Myth From Fact

Insulated concrete form (ICF) construction has been around for decades. Despite this, lack of familiarity sustains myths in some quarters. Nonetheless, ICF construction continues to expand. According to Global Market Insights, the ICF market will expand at a robust 6.4% CAGR through 2032. They project that North America will command 43% of that.

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October 19, 2023

3D Printed Concrete Market: $1 Billion Projected by 2030

There are literally thousands of materials used in 3D printing. They also come in various forms: filaments, pellets, powders. resins, wires, pastes and gels. But, what if grout or a high-performance concrete mix poured forth from the nozzle? Well, it already is! 3D printed concrete (3DPC) is already making its presence felt. In fact, some analysts think it will become a billion-dollar industry by 2030.

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September 21, 2023

Case Studies in Low-Carbon Ready Mix Concrete

Concrete is a superior construction material in myriad applications. Its prodigious durability, strength, versatility, and modest cost make it the material of choice for dams, roads, bridges, skyscrapers, water systems, and much more.

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September 15, 2023

Green Building Policy: More Scrutiny at the State & Local Level

Governments have certainly played a role in driving the green building boom. State and local efforts followed those initiated at the federal level. Today, authorities across all levels of government pursue more sustainable construction.

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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.