Hydrated lime (Ca(OH)2)- and reactive magnesia (MgO)-activated ground granulated blast-furnace slag (GGBS) have shown advantages in geotechnical applications compared with Portland cement (PC). To apply these two novel binders slurry form to field applications, the properties of their grouts need be investigated, which is objective this study. The heat hydration, bleeding, viscosity, setting be...

Abstract The article describes recent cases of tendon ruptures by corrosion and investigations carried out on some bridges in France. Several causes related to HDPE ducts have been identified such as damages during handling, threading tensioning strands, defective connection the duct anchorage, damage construction or operation, low quality material, etc. These rupture exclusively concern inject...

DISCUSSION: Rubblemound coastal structures contain voids between individual armor units. Structure voids maximize turbulent wave energy dissipation, but also allow passage of water and sediment. The volume of sediment passing through some jetties and terminal groins can be substantial, resulting in increased channel shoaling, higher maintenance costs, and significant loss of beach material. Mos...

The purpose of the present work was to determine thermal performance borehole heat exchangers, considering influences their geometric configurations and thermophysical properties soil, grout pipe wall material. A three-dimensional model developed for mass transfer in soil (a porous medium) grout, together with one-dimensional conductive through walls convective fluid circulating pipes. An algor...

This article discusses the effects of glass powder (GP) replacements and sodium hydroxide (NaOH) molarity on rheological, fresh, mechanical microstructure characteristics slag-based mechanochemical geopolymer (MG) grout. A conventionally activated grout an ordinary Portland cement (OPC) were also investigated for comparison. Four replacement ratios used (0%, 10%, 20% 30% by total precursor weig...

Despite the increasing number of studies on geopolymer-based materials, a lack information still prevails concerning use geopolymer materials for consolidation and conservation built heritage. Since introduction term “geopolymer” by Davidovits, several have pointed out geopolymers as potential replacement traditional binders, mainly due to their advantages associated with mechanical properties ...

Even though steel bar is a conventional reinforcement in soil stabilization systems, the problem of corrosion of steel may lead to vast damages especially in aggressive environments. In the past decades, Fiber Reinforced Polymer (FRP) materials have offered an effective solution to overcome the corrosion problem. Despite numerous bond stress-displacement models for reinforcements in concrete, t...