کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6715142 | 1428739 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Long-term performance of the healed mortar with polymer containing phosphazene after exposed to sulfate attack
ترجمه فارسی عنوان
عملکرد طولانی مدت ملات زخم شده با پلیمر حاوی فسفاتازن پس از تماس با سولفات
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کلمات کلیدی
ملات، حمله سولفات، فسفاتازن، پلیمر ریز ساختار،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
In this study, mortar samples were exposed to sulfate attack for 1â¯year and then healed with the polymer that contains phosphazene. After this healing, the microstructure and mechanical properties of these mortars were investigated. In the experimental work, the percentage of phosphazene in the monomer (0, 1%, 2%, 3% and 4%), the curing time (30, 60, 90, 180 and 365â¯days), the cement dosage (300, 350, 400, 450 and 500â¯kg/m3) and percentage of sulfate solution (0%, 1%, 2%, 4% and 6%) were selected as experimental parameters. Due to the high number of experimental parameters, experiments were reduced using the Taguchi L25 (56) orthogonal array as the test plan. After the design of the experiment, 50â¯Ãâ¯50â¯Ãâ¯50â¯mm cubes and 25â¯Ãâ¯25â¯Ãâ¯285â¯mm prismatic samples were prepared. The produced samples were exposed to the sulfate attack for the predetermined curing times. The samples were dried at 105â¯Â±â¯5â¯Â°C for 24â¯h after sulfate attack. Following this procedure, the monomer containing phosphazene was impregnated to samples at atmospheric conditions for 24â¯h. 1% benzoyl peroxide was used as the monomer initiator. The samples were heated to 60â¯Â°C for 4â¯h to polymerize the monomers. The compressive strength, weight changes and length changes of mortar specimens healed using polymer containing phosphazene after sulfate attack were investigated. Furthermore, SEM, EDX and XRD analyzes were conducted on the samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 167, 10 April 2018, Pages 473-481
Journal: Construction and Building Materials - Volume 167, 10 April 2018, Pages 473-481
نویسندگان
Harun TANYILDIZI,