Related Experiment Video
Updated: Aug 13, 2025

Production and Analysis of Sporosarcina pasteurii Biocement Bricks Using Custom 3D-Printed Molds for Unconfined Compression Tests
Published on: March 7, 2025
Deformation and Cracking Resistance of MgO-Incorporated Cementitious Material: A Review
Jinyuan Lu1,2, Pan Feng1,2, Hua Li3
1School of Material Sciences and Engineering, Southeast University, Nanjing 211189, China.
Abstract:
In China, MgO-based expansive agent (MEA) has been used for concrete shrinkage compensation and cracking control for over 40 years. The expansive behavior of MEA in cementitious materials could be manipulated to some extent by adjusting the calcination process of MEA and influenced by the restraint condition of the matrix. It is key to investigate the factors related to deformation and cracking resistance so that the desired performance of MEA in certain concrete structures could be achieved. This paper reviews the influence of key parameters such as hydration reactivity, dosage, and calcination conditions of MEA, the water-to-binder ratio, supplementary cementitious material, aggregates, and curing conditions on the deformation and cracking resistivity of cement paste, mortar, and concrete with an MEA addition. The numerical simulation methods and deformation prediction models are then summarized and analyzed for more reasonable estimations.
Related Concept Videos
Microcracking in Concrete
Types of Cement II
Abrasion Resistance of Concrete
One such test is the revolving disc test, where three plates...
Porosity in Cement Paste
The balance of water to cement in the mix is...
Strength of Cement
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
Mortar Properties

