بررسی مهم‌ترین خواص فیزیکی و مکانیکی سیمان سربارۀ فسفر

نوع مقاله : پژوهشی

نویسندگان

• علی اله وردی ¹
• مصطفی مهین روستا ²

¹ Institute of Chemical Technology

² دانشگاه علم و صنعت ایران

10.22067/civil.v30i2.51109

چکیده

در این مطالعه، خواص مخلوط‌های دوتایی حاوی سربارۀ فسفر (80 درصد وزنی) و فعال‌کنندۀ مرکب پایۀ سیمان پرتلند (20 درصد وزنی) در سه نرمی بلین 2050، 3030، و cm2/g 4500 مورد بررسی قرار گرفتند. همچنین نرمی بلین cm2/g 3030 به‌منظور بررسی اثر دماهای عمل‌آوری 45، 85 و ºC 200 برروی توسعۀ مقاومت فشاری انتخاب شد. نتایج آزمایش‌ها نشان داد که با افزایش نرمی بلین جرم حجمی توده و زمان گیرش کاهش و نسبت آب به سیمان در قوام معمول و مقاومت فشاری افزایش می‌یابد و در دماهای بالاتر از ºC 45، مقاومت فشاری در انتهای زمان عمل‌آوری کاهش می‌یابد.

کلیدواژه‌ها

• سربارۀ فسفر
• نرمی بلین, عمل‌آوری
• فعال‌کننده
• مقاومت فشاری

---

عنوان مقاله [English]

Investigating the Most Important Physical and Mechanical Properties of Phosphorus Slag Cement

نویسندگان [English]

• Ali Allahverdi ¹
• Mostafa Mahinroosta ²

¹ Iran University of Science and Technology

² Iran University of Science and Technology

چکیده [English]

In this study, the properties of binary mixtures containing phosphorus slag (80 wt.%) and Portland based-chemical activator (20 wt.%) at three Blaine fineness of 2050, 3030, and 4500 cm2/g were studied. Also, Blaine fineness of 3030 cm2/g was selected to investigate the effect of curing temperature of 45, 85, and 200 ºC on compressive strength improvement. The experimental results showed that with enhancement of Blaine fineness, the bulk density and setting time decrease and water-to-cement ratio and compressive strength increase and at temperatures higher than 45 ºC, compressive strength decreases at later curing times.

کلیدواژه‌ها [English]

• Phosphorus Slag
• Blaine Fineness
• Curing
• Activator
• Compressive Strength

مراجع

1. Dongxu, L., Jinlin, S., Liangxi, M., and Xuequan, W., "The Influence of Admixtures on the Properties of Phosphorous Slag Cement", Cement and Concrete Research, Vol. 30, PP. 1169–1173, (2000).

2. Dong-xu, L., Lin, C., Zhong-zi, X., and Zhi-min, L., "A Blended Cement Containing Blast Furnace Slag and Phosphorous Slag", Wuhan University of Technology, Vol. 17, PP. 62-65, (2002).

3. Peiwei, G., Xiaolin, L., Chuanxi, Y., Xiaoyan, L., Nannan, S., and Shaochun, J., "Microstructure and Pore Structure of Concrete Mixed with Superfine Phosphorous Slag and Super-plasticizer", Construction and Building Materials, Vol. 22, PP. 837–840, (2008).

4. Xia, C., Li, Z., and Kunhe, F., "Anti-crack Performance of Phosphorous Slag Concrete", Wuhan University, Journal of Natural Sciences, Vol. 14, PP. 080–086, (2009).

5. Shi, C., and Krivenko, P.V., "Alkali-activated Cements and Concrete", Taylor & Francis, London and New York, (2006).

6. Behim, M., Beddar, M., and Clastres, P., "Reactivity of Granulated Blast Furnace Slag", Slovak Journal of Civil Engineering, Vol. 2, PP. 7-14, (2013).

7. Slag Cement and the Environment, Slag Cement Association, www.slagcement.org. (2003).

8. Shi, C., and Li., Y., "Investigation on Some Factors Affecting the Characteristics of Alkali-phosphorus Slag Cement", Cement and Concrete Research, Vol. 19, PP. 527-533, (1989).

9. Singh, N.B., and Bhattacharjee, K.N., "Phosphorous Furnace Slag-A Potential Waste Material for the Manufacture of Cements", Indian Journal of Engineering and Materials Sciences, Vol. 3, PP. 41-44, (1996).

10. Dongxu, L., Jinlin, S., Lin, C., and Xuequan, W., "Influence of Fast-setting/early-strength Agent on High Phosphorous Slag Content Cement", Cement and Concrete Research, Vol. 31, PP. 19-24, (2001).

11. Xia, C., Kunhe, F., Huaquan, Y., and Hua, P., "Hydration Kinetics of Phosphorus Slag-cement Paste", Journal of Wuhan University of Technology-Materials Science, Vol. 26, PP. 142–146, (2011).

12. Xu, X., Zhang, Y., and Li, S., "Influence of Different Localities Phosphorous Slag Powder on the Performance of Portland Cement", Procedia Engineering, Vol. 27, PP. 1339–1346, (2012).

13. Liu, D.M., "Effect of Phosphorus Slag and Fly Ash on Mechanical Properties of High Belite Cement", Advanced Materials Research, Vol. 598, PP. 535-538, (2012).

14. Xiu-wei, L., Lin, Y., and Bin, Z., "Utilization of Phosphorus Slag and Fly Ash for the Preparation of Ready-mixed Mortar", Applied Mechanics and Materials, Vol. 423-426, PP. 987-992, (2013).

15. Peng, Y., Huang, J., and Ke, J., "Preparation of Ultra-high Performance Concrete Using Phosphorous Slag Powder", Applied Mechanics and Materials, Vol. 357-360, PP. 588-591, (2013).

16. Jinhui, T., Min, D., Aiguo, W., and Lilan, X., "Influence of the Cement Fineness on Strengths of Cement Pastes Containing High Phosphorus Slag", Journal of Materials in Civil Engineering, DOI: 10.1061/ (ASCE) MT.1943-5533.0001316.

17. Sajedi, F., and Abdul Razak, H., "The Effect of Chemical Activators on Early Strength of Ordinary Portland Cement-slag Mortars", Construction and Building Materials, Vol. 24, PP. 1944–1951, (2010).