Use of Geopolymer Matrix Composites in the Construction of Fire Doors

2014 ◽  
Vol 635 ◽  
pp. 174-176
Author(s):  
Iva Dufkova ◽  
Sezer Bilketay ◽  
Dora Kroisová ◽  
Vladimír Kovačič
Keyword(s):  
Matrix Composites ◽  
Geopolymer Matrix ◽  
Fire Residues ◽  
Combustible Materials

Protection and safety of workers in plants with the danger of fire is always the first place. They are currently used in devices that are designed to quickly separate the fire residues from workers such as steel fire doors filled with non-combustible materials that insulate the prescribed time up to 600 ° C. As the demands for safety was the requirement for resistance to temperatures higher than 600 ° C. [1, 2]. Post relates to improvements refractory properties of steel gates based geopolymer matrix composites. They are analyzed the properties of different materials such as fillers geopolymer matrix, durability and affinity to steel parts of the door structure.

scholarly journals Mechanical Performance of Glass-Based Geopolymer Matrix Composites Reinforced with Cellulose Fibers

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2395 ◽  
Author(s):  
Gianmarco Taveri ◽  
Enrico Bernardo ◽  
Ivo Dlouhy
Keyword(s):  
Fly Ash ◽  
Mechanical Performance ◽  
Fiber Surface ◽  
Cellulose Fiber ◽  
Maximum Effect ◽  
Matrix Composites ◽  
Curing Conditions ◽  
Chevron Notch ◽  
Geopolymer Matrix ◽  
Mechanical Performances

Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10–13 M). Different formulations (fly ash and borosilicate in mixtures of 70–30 wt% and 30–70 wt%, respectively) and physical conditions (soaking time and relative humidity) were adopted. Flexural strength and fracture toughness were assessed for samples processed in optimized conditions by three-point bending and chevron notch testing, respectively. SEM was used to evaluate the fracture micromechanisms. Results showed that the geopolymerization efficiency is strongly influenced by the SiO2/Al2O3 ratio and the curing conditions, especially the air humidity. The mechanical performances of the geopolymer samples were compared with those of cellulose fiber–geopolymer matrix composites with different fiber contents (1 wt%, 2 wt%, and 3 wt%). The composites exhibited higher strength and fracture resilience, with the maximum effect observed for the fiber content of 2 wt%. A chemical modification of the cellulose fiber surface was also observed.

Geopolymer and Geopolymer Matrix Composites

2020 ◽  
Author(s):  
Dechang Jia ◽  
Peigang He ◽  
Meirong Wang ◽  
Shu Yan
Keyword(s):  
Matrix Composites ◽  
Geopolymer Matrix

scholarly journals COMPRESSIVE PROPERTIES OF GEOPOLYMER MATRIX COMPOSITES

2018 ◽  
Vol 179 ◽  
pp. 02003
Author(s):  
Robin Hron ◽  
František Martaus ◽  
Martin Kadlec
Keyword(s):  
Room Temperature ◽  
Aircraft Industry ◽  
Matrix Composites ◽  
Compressive Properties ◽  
Reinforced Composite ◽  
Geopolymer Matrix ◽  
Fire Smoke ◽  
New Type ◽  
Cost Efficient ◽  
The Impact

Polymer based resin is presently the most used resin for preparing of composites constructions, because of its undisputable benefits; however, there are some limits. The aircraft industry has especially strict requirements for fire, smoke and toxicity (FST) properties which are limited when using organic polymers. Conventional polymer resins resist to temperatures usually up to 120 °C and then they lose stiffness and strength. However, geopolymer matrix is a new type of resin with high potential for cost-efficient applications dealing with temperatures up to 1 200 °C. This paper presents compressive properties of a new geopolymer resin and a fibre reinforced composite with the geopolymer matrix (geocomposite). The effect of a harsh environment exposition on the strength was also evaluated, specifically the impact of the exposure in hot-wet and salt mist conditions. Samples were tested in accordance with ASTM D695 in case of pure resin and in accordance with ASTM D6641 in case of the geocomposite. All tests were performed at room temperature and additionally, pure geopolymer resin was tested at 400 °C. The high temperature caused 35 % decrease of the compressive strength in comparison with the room temperature. Geopolymers behaves like a ceramic and have some unique properties such as high thermal stability, non-flammability and do not generate toxic smoke and fumes.

Effect of initial cure time on toughness of geopolymer matrix composites

2017 ◽  
Vol 43 (13) ◽  
pp. 9884-9890 ◽  
Author(s):  
Patrick R. Jackson ◽  
Donald W. Radford
Keyword(s):  
Matrix Composites ◽  
Geopolymer Matrix ◽  
Cure Time
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