Transport and mechanical properties of self consolidating concrete with high volume fly ash

2009 ◽  
Vol 31 (2) ◽  
pp. 99-106 ◽  
Author(s):  
Mustafa Şahmaran ◽  
İsmail Ö. Yaman ◽  
Mustafa Tokyay
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
High Volume ◽  
Self Consolidating Concrete ◽  
High Volume Fly Ash

Basic rheological and mechanical properties of high-volume fly ash grouts

2002 ◽  
Vol 16 (6) ◽  
pp. 353-363 ◽  
Author(s):  
J Mirza ◽  
M.S Mirza ◽  
V Roy ◽  
K Saleh
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
High Volume ◽  
High Volume Fly Ash

Effect of ultrafine fly ash on mechanical properties of high volume fly ash mortar

2014 ◽  
Vol 51 ◽  
pp. 278-286 ◽  
Author(s):  
Steve W.M. Supit ◽  
Faiz U.A. Shaikh ◽  
Prabir K. Sarker
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
High Volume ◽  
High Volume Fly Ash

scholarly journals Mechanical Properties of High-Volume Fly Ash Strain Hardening Cementitious Composite (HVFA-SHCC) for Structural Application

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2607 ◽  
Author(s):  
Chenhua Jin ◽  
Chang Wu ◽  
Chengcheng Feng ◽  
Qingfang Zhang ◽  
Ziheng Shangguan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Strain Hardening ◽  
Construction Material ◽  
High Volume ◽  
Partial Replacement ◽  
Cementitious Composite ◽  
Multiple Cracking ◽  
High Volume Fly Ash ◽  
Structural Applications

Strain-hardening cementitious composite (SHCC) is a kind of construction material that exhibits multiple cracking and strain-hardening behaviors. The partial replacement of cement with fly ash is beneficial to the formation of the tensile strain-hardening property of SHCC, the increase of environmental greenness, and the decrease of hydration heat, as well as the material cost. This study aimed to develop a sustainable construction material using a high dosage of fly ash (no less than 70% of the binder material by weight). Based on the micromechanics analysis and particle size distribution (PSD) optimization, six mixes with different fly ash to cement ratios (2.4–4.4) were designed. The mechanical properties of the developed high-volume fly ash SHCCs (HVFA-SHCCs) were investigated through tensile tests, compressive tests, and flexural tests. Test results showed that all specimens exhibited multiple cracking and strain-hardening behaviors under tension or bending, and the compressive strength of the designed mixes exceeded 30MPa at 28 days, which is suitable for structural applications. Fly ash proved to be beneficial in the improvement of tensile and flexural ductility, but an extremely high volume of fly ash can provide only limited improvement. The HVFA-SHCC mix FA3.2 (with fly ash to binder ratio of about 76% by weight) designed in this study is suggested for structural applications.

scholarly journals Durability Assessment of Recycled Aggregate HVFA Concrete

2020 ◽  
Vol 10 (18) ◽  
pp. 6454
Author(s):  
Valeria Corinaldesi ◽  
Jacopo Donnini ◽  
Chiara Giosué ◽  
Alessandra Mobili ◽  
Francesca Tittarelli
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Corrosion Behavior ◽  
High Volume ◽  
Recycled Aggregate Concrete ◽  
Galvanized Steel ◽  
Recycled Aggregate ◽  
Aggregate Concrete ◽  
High Volume Fly Ash ◽  
Natural Aggregates

The possibility of producing high-volume fly ash (HVFA) recycled aggregate concrete represents an important step towards the development of sustainable building materials. In fact, there is a growing need to reduce the use of non-renewable natural resources and, at the same time, to valorize industrial by-products, such as fly ash, that would otherwise be sent to the landfill. The present experimental work investigates the physical and mechanical properties of concrete by replacing natural aggregates and cement with recycled aggregates and fly ash, respectively. First, the mechanical properties of four different mixtures have been analyzed and compared. Then, the effectiveness of recycled aggregate and fly ash on reducing carbonation and chloride penetration depth has been also evaluated. Finally, the corrosion behavior of the different concrete mixtures, reinforced with either bare or galvanized steel plates, has been evaluated. The results obtained show that high-volume fly ash (HVFA) recycled aggregate concrete can be produced without significative reduction in mechanical properties. Furthermore, the addition of high-volume fly ash and the total replacement of natural aggregates with recycled ones did not modify the corrosion behavior of embedded bare and galvanized steel reinforcement.

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