When Sulfate Resistant Concrete is specified, Type IL cements are not allowed. This could change depending on ongoing research.

Challenges of Type IL Cement in Construction Integrating Type IL cement into construction, while environmentally beneficial, introduces a range of technical difficulties. One primary issue is an inability to consistently achieve the desired compressive strength, prompting numerous concrete producers to revisit and modify their mixtures to make ...

What is Type IL Cement? • ASTM C‐595 Type IL cement is a C‐150 Type I or Type I/II cement clinker ground with 5‐15% limestone. • Already listed as an approved material in ACI 301, ACI 318 and P501 for use. • Typically ground slightly finer (450‐500 versus 350‐420).

Jul 20, 2022 · Research on Type IL indicates a high degree of sensitivity to particle size after grinding of the limestone. Many batch plants are swapping the cement in their mixes without additional testing. This is a violation of the ACI requirement that test cylinders be provided for the specific mix to be used.

•Type IL(10) = 90% Type 1 Portland Cement and 10% Limestone, etc. –Mill certificate Chemical Analysis contains •% Sulfate, •Loss on Ignition, •Equivalent alkali content –Blaine fineness has no specification

Jan 25, 2024 · The conversation covers the reasons why Type 1L cement is a popular topic in the concrete industry and the challenges of using it across different locations. Kyle shares insights into the issues of differential set and cracking, as well as the importance of communication and material variability.

Jul 7, 2022 · Portland-limestone cement Type IL is formulated with a higher limestone content (between 5% and 15%) and governed by ASTM Standard C 595 “Standard Specification for Blended Hydraulic Cements.”

experienced problems more frequently with Type IL cement concrete than with Type I cement concrete (56%). Most of the remaining respondents reported that problems were occurring at the same frequency (43%), and a few respondents indicated that problems were occurring at a lower frequency with Type IL cement concrete than with Type I cement ...

Feb 8, 2022 · Portland Limestone Cement is a blended cement with a higher limestone content. Per ASTM specifications, PLCs are specified as a Type IL cement with a specified limestone replacement limit of 15%.

Mar 20, 2023 · Failures can include plastic shrinkage cracks, thermal cracks, and a weak and dusty surface. Similarly, as Type IL cement’s particle fineness increases, set times decrease. The greater the limestone content in the blended cement, the greater the impact on set times.

How does the naming practice for Type IL work? The naming practice for Type IL cement adds the percentage of limestone in parenthesis after the name. Example: Type IL (10), for a cement containing 10% limestone. What are my options if PLC isn’t allowed on a project?

Mar 17, 2022 · Because of market and government demands to reduce greenhouse gas emissions (carbon dioxide), the cement industry is transitioning to increased use of portland limestone cement (PLC) Type IL in an effort to become more carbon neutral.

Mar 1, 2025 · Question: Why is Type IV cement rarely produced and Type V cement rarely used? Question: What are blended cements? Question: Do different admixtures of a given type always perform the same? Question: Commonly used accelerating admixture. View all Frequently Asked Questions on Type IL cement»

Jul 20, 2023 · An example is: Type IL (10) is 90% portland cement and 10% limestone. The limestone is typically added to replace a portion of the clinker during the final grinding stage in cement production.

Type IL cement in the construction of concrete floors, the response to this question verifies appropriate industry expe-rience. Ninety-four percent of the respondents indicated that they have been involved in floor construction projects that included Type IL cement. Question 4: If you have not used Type IL cement

Feb 22, 2024 · About half of the survey respondents reported issues with using Type IL cement, but half also reported no issues. Issues. The ASCC survey indicates that not everyone is seeing issues with mix designs utilizing Type IL cement. There are many reasons this may be happening.

Jan 2, 2024 · finished concrete slabs constructed using Type IL cement (portland-limestone cement [PLC]), others have struggled with project delays and unacceptable finishes.

Feb 22, 2024 · Portland-Limestone Cement (PLC), or Type IL (ASTM C 595, AASHTO M 240), which has become the talk of our industry, has gotten a bad rap. Unfortunately, a better job could have been done communicating and preparing some in the industry when it was rolled out.

Jan 1, 2024 · Integrating Type IL cement into construction, while environmentally beneficial, introduces a range of technical difficulties. One primary issue is an inability to consistently achieve the desired compressive strength.