نتایج جستجو برای: cement content

تعداد نتایج: 440472  

2013
Aparna Roy

Soil stabilization has become a major issue in construction engineering and the researches regarding the effectiveness of using industrial wastes are rapidly increasing. The present experimental work briefly describes the suitability of the locally available Rice Husk Ash (RHA) to be used in the local construction industry in a way to minimize the amount of waste to be disposed to the environme...

Journal: :civil engineering infrastructures journal 0
seyed esmaeil mousavi civil engineering department, college of engineering, universiti tenaga nasional, ikram-uniten road, 43000 kajang, selangor, malaysia leong sing - wong college of graduate studies, universiti tenaga nasional, ikram-uniten road, 43000 kajang, selangor, malaysia

the present paper investigates the influence of stabilization with cement, peat ash, and silica sand on permeability coefficient (kv) of compacted clay, using a novel approach to stabilize the clay with peat ash as a supplementary material of cement in the compacted and stabilized soil. in order to assess the mentioned influence, test specimens of both untreated and stabilized soil have been te...

2005
Y. Qiao

Macro-defect-free (MDF) cement with high flexure strength has been an active research area over several decades. To study the tensile properties of these materials, it is essential to understand the mode I crack propagation. In this article, cleavage cracking in calcium aluminate cement (CAC)–phenol resin composites is analyzed based on an energy method. The crack-trapping effect of the cement ...

2009
Ho-Nam Lim Seong-Hwan Kim Bin Yu Yong-Keun Lee

The purpose of this study was to determine the influence of incrementally added uncured HEMA in experimental HEMA-added glass ionomer cement (HAGICs) on the mechanical and shear bond strength (SBS) of these materials. Increasing contents of uncured HEMA (10-50 wt.%) were added to a commercial glass ionomer cement liquid (Fuji II, GC, Japan), and the compressive and diametral tensile strengths o...

Journal: :IOP conference series 2023

Abstract Cement Treated Base (CTB) is a foundation layer (base course) on flexible pavement and the development of soil-cement commonly used in construction that receives high loads. Generally, CTB combination coarse aggregate (split), fine aggregate, cement, water with zero slumps. The purpose this study was to determine optimum cement content mixture variations 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5...

2012
Jhamak Nourmohammadi S. K. Sadrnezhaad

Glass ionomer cements (GICs) originally designed for use as dental materials have a number of advantages over acrylic bone cements. These include nonexothermic setting reaction with no thermal damage to surrounding tissues, minimal shrinkage during gelation, the possibility of incorporation drugs and growth factors within the cement and the ability to release fluoride. It is already known that ...

2017
Liguo Wang Shupeng Zhang Dapeng Zheng Haibin Yang Hongzhi Cui Waiching Tang Dongxu Li

In this study, the effects of graphene oxide (GO) on the microstructure of cement mortars were studied using scanning electron microscopy (SEM), thermogravimetric (TG), and X-ray diffraction (XRD) techniques. Cement mortar samples with different proportions of GO (0.02, 0.04, 0.06, and 0.08 wt % based on the weight of cement) were prepared. The test results showed that GO affected the crystalli...

2014
Esther Berástegui Eduard Valmaseda-Castellón Vicente Faus María-Luisa Ballester Leonardo Berini-Aytés

INTRODUCTION To determine and compare the pH, conductivity and calcium release of an experimental Portland cement (PE) consisting of trioxid mineral aggregate and a comercially available modified Portland cement (C.P.M.) after 1, 2, 3, 4, 8, 10, 15 and 30 days. MATERIAL AND METHODS Cements were mixed following the manufacturer's instructions, with a powder: liquid ratio of 3:1. Each cement wa...

2014
Xiuzhi Zhang Guodong Zhang Chaoqian Zhao Xin Cheng

Multi-walled carbon nanotube (MWCNT)/Portland cement (PC) composites have been prepared to evaluate their electromagnetic wave absorbing properties. The effects of MWCNTs content and sample thickness were discussed in the frequency ranges of 2–18 GHz. Results show that the absorbing properties of cement-based composites are affected by the content of MWCNT and the thickness of the samples. When...

2005
Jiong Hu

The effects of aggregate characteristics on flow ability of mortar mixtures were investigated. Two types, five single sizes, and three gradations of fine aggregate were considered. Uncompacted voids of the aggregates were measured. Flow properties of 166 mortar batches made with the aggregates, together with different sand-to-cement ratios (s/c) and water-to-cement ratios (w/c), were evaluated ...

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