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2023 TDA 6-2 ONGOING
Release time: 2024/07/22  Publisher: original  Views:
Research on gradient enhanced polymer modified concrete for structural use and comparison with conventional concrete
      

Principal Investigator:

Lu Zichen
Tongji University

 
        


Project Background:
The addition of polymer into the concrete can greatly improve the toughness and bonding strength of concrete. Hence, the application of polymer modified concrete is one important and efficient way to solve the fast damage of concrete pavement and increase its durability. However, one problem limiting the massive application of polymer in concrete is the high polymer dosage, which significantly increases road construction costs. Considering the stress distribution of concrete pavement under load pressure, the top and ground parts are easier to break and more polymers should be concentrated in these key areas. Therefore, it is more and more necessary to realize the local enrichment of polymer in the key areas of concrete pavement and achieve the gradient distribution of polymer inside the pavement structure.

Aims & Goals:
1. To achieve the gradient distribution of polymer in concrete pavement and improve its mechanical property and durability.
2. To build up the technology for the gradient material development and gradient structural design, for the construction of gradient reinforced polymer modified concrete.
3. To realize the practical application of polymer modified concrete and promote the usage amount of polymer in the concrete road. 

Outcomes:
PAPER 1: 'The Influence of Gradient Change in Polymer Content on the Properties of Cement Mortar' (in chinese), The 10th National Academic Conference on Ready-mixed Mortar, 2023 (accepted)
 
PAPER 2: 'Effect of Different Water Glass on the Properties of Polymer Modified Slag' (in chinese), 2023 (accepted)
 
CONFERENCE ORAL REPORT 1: 'the Influence of Gradient Change in Polymer Content on the Properties of Cement Mortar' in the 10th National Academic Conference on Ready-mixed Mortar.

PAPER 3: 'Effect of styrene acrylic latex on the performance of metakaolin blended cement: From hydration to mechanical properties', Construction and Building Materials, 2024, 438:137289