نتایج جستجو برای: concrete macrotexture

تعداد نتایج: 76169  

M. Murmu S. V. Deo V. N. Kanthe,

The early age shrinkage is responsible for the early age cracking of concrete. It is very critical for durability of concrete. The change in volume of concrete due to evaporation of water or dehydration process is known as shrinkage. To reduce the early age shrinkage utilized the supplementary cementitious material (SCM) in concrete. In present research industrial and agricultural waste byprodu...

Journal: :journal of structural engineering and geo-techniques 2015
seyed majdeddin mir mohammad hosseini abdolhossein azadmaneshb

in the construction process of a plastic concrete cut-off wall, concreting is usually performed using the termie pipe method. in this method, concreting is performed from the lowest point in the excavated trench (containing the slurry) using a funnel and the pipe connected to it. the concrete poured in the funnel gradually settles in the panel through the termie pipe which is beneath the slurry...

Journal: :محیط شناسی 0
ناصر مهردادی دانشیار گروه مهندسی عمران محیط زیست ،دانشکدة محیط زیست ،دانشگاه تهران افروز اکبریان کارشناس ارشد مهندسی عمران محیط زیست، دانشکدة محیط زیست، دانشگاه تهران علی حق اللهی کارشناس ارشد مهندسی عمران محیط زیست، دانشکدة محیط زیست ،دانشگاه تهران

this document provides feasibility study of using treated domestic wastewater in concrete mixing. today, concrete is one of the most important construction materials. from first time that concert was used in construction materials, always the drinkable water used for concrete mixing water. domestic wastewater contains about 400 ppm of organic materials. after the treatment of wastewater, concen...

Journal: :international journal of nano dimension 0
j. esmaeili lecturer in faculty of civil engineering, university of tabriz.iran. k. andalibi lecturer in faculty of civil engineering, university of tabriz, iran.

the effects of adding nano-silica particles on the compressive strength and water permeability of concrete and its comparison with that of micro-silica were investigated in this work. the effect of combination of nano- silica and micro-silica were also studied in this work, which resulted in an increase in compressive strength of concrete in comparison with other concrete specimens tested in th...

Journal: :مهندسی سازه 0
مهدی قلیپور فیضی

research on the heavy concrete technology expanded rapidly in the last decades. this kind of the concrete can be used for different purposes such as the protective shields of the medical centers and nuclear power plants. ilmenite, limonite, hematite, magnetite and barite are the common mineral aggregates which are used in the heavy concrete construction technology. in this research the mechanic...

Journal: :مهندسی عمران فردوسی 0
محمدرضا صبور مینا یکه لر مرتضی نیکروان

concrete is one of the most utilized construction materials in the world. nowadays, nano silicate usage due to its special property attracted considerable attention. on this basis, studying its environmental functions is an essential issue. accordingly, the behavior of normal concrete and the one with nano silicate were compared via taking advantage of life cycle assessment (lca) method in this...

Journal: :international journal of civil engineering 0
a. foroughi-asl s. dilmaghani h. famili

self-compacting concrete (scc) is a highly fluid yet stable concrete that can flow consistently under its own weight, pass between bars, and fill in formwork without the need of compaction. the application of scc effectively resolves the difficulties of concreting in situations with complicated formwork and congested reinforcements. in this paper, the bond between scc and steel reinforcement wa...

Journal: :international journal of environmental research 0

the purpose of this research was to evaluate the application of recycled aggregates of constructiondebris such as concrete, cement block and rubbles from pars-kangan site in asphalt concrete mix design. toevaluate the performance of aggregates different mix designs with recycled aggregate percentages of 0, 10,30, 50 and bitumen percentages of 4, 4.5, 5, 5.5, 6, and 6.5 were provided and two mar...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید