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Geotextile is one of material in engineering field.
Geotextile are also fibrous material made of element such as individual fibres, filament, yans, tapes and are long, small in cross section and also strong in tension.The largest area of application of geotextile in Civil Engineering is Geotechnical Engineering.
Alon, G.: Mechanisms and Process Parameters of Filter Screens, Journal of Irrigation and Drainage Engineering, V.112, pp. 2993-304. (1986) [4] Cawangan Jalan (Reka), Ibu Pejabat JKR, Kuala Lumpur.

A derivative-free filled function method for non-linear inverse optimization of material parameters LV Yinghui1,a, Yanzhen YU2,b 1,2School of Civil and Architectural Engineering; University of Jinan; Jinan 250022, China 1lvyinghui_2010@163.com, 2cea_yuyz@ujn.edu.cn Key words: non-linear analysis; filled function; derivative-free; dynamic; Abstract: In solving non-linear inverse optimization problems, how to make sure one and only solution and cut down computational effort are two very representative challenges.
The application results of non-linear inverse analysis of material parameters for a practical engineering show that the derivative-free filled function method can quickly solve non-linear inverse problems with one and only solution, and it will be robust one in non-linear inverse solution field.

Water-resistance of mortars with lightweight aggregates SOARES António1,a *, JÚLIO Maria2,b, FLORES-COLEN Inês1,c, ILHARCO Laura2,d, DE BRITO Jorge1,e, GASPAR MARTINHO José2,f 1 ICIST, Departamento de Engenharia Civil, Arquitectura e Georrecursos, Instituto Superior Técnico, Universidade de Lisboa, Av.
Rovisco Pais, 1049-001 Lisboa, Portugal aortiz.soares@gmail.com, bmaria.julio@ist.utl.pt, cines.flores.colen@ist.utl.pt, dlilharco@ist.utl.pt, ejb@civil.ist.utl.pt, fmartinho@ist.utl.pt Keywords: water-resistance, porosity, lightweight aggregates, aerogel Abstract.
Razzaghi, Influence of nano particles on durability and mechanical properties of high performance concrete, Procedia Engineering 14 (2011) 3036-3041
Bogas, Characterization of structural concrete with lightweight aggregates of expanded clay (in Portuguese), PhD Dissertation in Civil Engineering, Instituto Superior Técnico, 2011
PhD Dissertation in Civil Engineering, Instituto Superior Técnico, 2009

Sama’ila Saleh Department of Civil Engineering, College of Engineering, Hassan Usman Katsina Polytechnic Nigeria samailasaleh2003@yahoo.com Key words: Crumb rubber (CR), bitumen and road mat.
The results were assessed based on the provisions of Asphalt Institute Marshall Criteria to determine the conformity with engineering properties- Stability, Flow, and Void analysis.
The results indicated that 40% CR content resulting in Stability - 11.0KN, Flow - 4.3mm and VIM -14.45% trailed those with content 0% CR, but adequate in engineering properties to replace bitumen in asphalt mix.
Highway engineers around the world have tried to incorporate scrap tire rubber in asphalt pavements since the 1950s [2].
This is further assessed using established engineering standard to affirm the reliability of the result.

The aim of this study is the characterization of hot-dip galvanized S355K2+N steel plates used as components for engineering civil structures.

Micro-pile of slope reinforcement type is more and more used in slope engineering, at the present stage most of the projects are designed by engineer experiences, theory researches are hysteretic, load transfer and mechanics characters are not clear.
There are three type of micro-pile in slope engineering, namely: type of slope surface reinforcement, type of slope step reinforcement, type of slope foot reinforcement.
These years micro-pile are more and more wildly used in slope engineering because of its advantages: convenience in engineering, low noise in construction and after construction the pile body and soil form to be a kind of geotechnique composite that can resist forces.
(In Chinese) [2] Zhou Peide, Wang Huanlong, Sun Hongwei.Micro-pile composite structure and its design theory [J].Chinese Journal Of Rock Mechanics and engineering,2009,28(7):1353-1361.
Model test study of landslide reinforcement with micropile groups[J].China Civil Engineering Journal,2011,44(4):120-128.

,b Department of Civil Engineering University of Minho Campus de Azurém, Guimarães, Portugal acesar_cardoso@civil.uminho.pt, bsaid@civil.uminho.pt,  Key words: pre-fabricated panels, thermal insulation, thermal bridges.

Improvement of the Assessment Method for Fire Resistance of Steel Structures in the Temperature Regime of Fire under Realistic Conditions Taras Shnal1,a, Serhii Pozdieiev2,b, Oleksandr Nuianzin3,c* and Stanislav Sidnei4,d 1Lviv Polytechnic National University, 12, Bandera street, Lviv, Ukraine, 79013 2Cherkassy Institute of Fire Safety of National University of Civil Defence of Ukraine, 8, Onoprienko str., Cherkassy, Ukraine, 18034 3Cherkassy Institute of Fire Safety of National University of Civil Defence of Ukraine, 8, Onoprienko str., Cherkassy, Ukraine, 18034 4Cherkassy Institute of Fire Safety of National University of Civil Defence of Ukraine, 8, Onoprienko str., Cherkassy, Ukraine, 18034 ataras.shnal@gmail.com, bsvp_chipbbk@ukr.net, cnuyanzin@i.ua, dsidney-1980@ukr.net.com Keywords: steel building structures, steel heating, fire resistance, cross-section coefficient, bearing capacity.
IOP Conference Series: Materials Science and Engineering.

Durability performance of fly ash based one-part geopolymer mortars ABDOLLAHNEJAD Z.1,a, PACHECO-TORGAL F. 2,b, AGUIAR J.B.3, b and JESUS C.4,c 1Civil Engineering Department, University of Minho, Guimarães, Portugal 2C-TAC Research Centre, University of Minho, Guimarães, Portugal atolumahvash@gmail.com, b torgal@civil.uminho.pt, c aguiar@civil.uminho.pt, dcjesus@civil.uminho.pt Keywords: Portland cement, one part geopolymer, hybrid alkaline, mortars, durability Abstract.

Experimental Research on Rheological Property of Water-bearing Weak Sandstone in Large Cross-Section Tunnelling ZHOU Ye1, a, LI Pengfei1, 2, 3, b 1 Tunnel and Underground Engineering Research Center of Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 2Economic and Planning Research Institute of the Ministry of railways, Beijing 100038, China 3Department of Civil Engineering, Tsinghua University, Beijing 100084, China aemail: zhou-ye-hn@163.com, bemail: bhfp@sina.com Keywords: tunnel engineering；weak sandstone；rheological property；laboratory test；water content Abstract：Various problems such as sand, mud and water bursting, unstability of tunnel face, large deformation of surrounding rock and severe cracking of primary support occurred in excavation of the water-bearing weak sandstone strata of Huma Ling Tunnel, Lan-Yu railway.
In view of the current uncertainty in the parameter selection in the domestic geotechnical and underground engineering sector, according to the Lanzhou-Chongqing railway Huma Ling tunnel construction practice, the paper proposed water-rich weak sandstone (soil) body macromechanic parameters after the indoor test and experience analogy analysis to provide a reference for the design and construction. 1 Field samples and specimens The Tertiary minor sandstone sample used in this test is taken from the third inclined shaft work area of Huma Ling tunnel.