UBE三菱セメント.jpg

UBE三菱セメント

太平洋セメント.jpg

太平洋セメント

住友大阪セメント.png

住友大阪セメント

CUCO_logo_1_4C.jpg

CUCO

安藤ハザマ.jpg

安藤ハザマ

About This Conference

Greeting

General Information

Important Dates

Program+Presentation Guideline

Plenary Speakers

Doctoral School

Announcements(1)

Call for Abstract / Registration

Call for Abstracts

Registration & Visa

Accommodation

Timetable

Sun. Sep 27, 2026

Mon. Sep 28, 2026

Tue. Sep 29, 2026

Wed. Sep 30, 2026

Program

Program Booklet

Sessions

Search presentations

Download PDF for print

名称未設定横長ロゴv2 (1).png

web_icon.png

Change account information such as the email address and password on the account setting screen common to Confit.

Login required to view

Password required to view

Presentation Information

Session Details

To browse or post comments, you must log in.

You cannot post comments as it is outside the comment posting period.

This comment has been deleted. You cannot reply to this comment.

Program Type

Profile management

Bookmark

Announcements

Dr. Maciej Zajac (Carbonation Hardening) Lecture: Carbonation Hardening of Cementitious Materials: Mechanisms, Performance and Industrial Boundaries Carbonation hardening is a CO₂-curing technology in which clinker phases and early hydrates react with dissolved CO₂ to form calcium carbonate, silica-rich gels and, depending on curing history, secondary hydrate phases. This lecture introduces the mechanism from Portland cement to Portland-limestone and belitic systems. The dominant process is not ordinary hydration acceleration, but a coupled dissolution, carbonation and rehydration sequence controlled by CO₂ access, water availability, carbonate precipitation and remaining clinker reactivity. In Portland cements, alite and belite carbonation, partial C-S-H decalcification and subsequent hydrate formation refine the microstructure and improve early strength. Limestone mainly modifies carbonate availability and dilution, while belitic binders require carbonation to overcome intrinsically slow hydration. The talk will separate thermodynamic driving forces from kinetic limitations, discuss pore blocking and scale-up constraints, and evaluate where carbonation hardening is scientifically robust, industrially useful, or still unresolved for precast and low-CO₂ cement production.

Doctoral School/Dr. Maciej Zajac (Carbonation Hardening)

2nd MC3 Conference

Presentation Information

[H5OBk7LX-1add]Doctoral School

Comment