Results 41 to 50 of about 116,318 (303)
Diffusion-reaction model for alkali-silica reaction in concrete [PDF]
, 2013 A new diffusion-reaction model for the potentially deleterious Alkali-Silica Reaction (ASR) process in concrete is presented. The model involves three coupled diffusion processes, two in-goingand one out-goingfrom the aggregate viewpoint. Alkali (Na+ and
Carol, Ignacio +2 more
core
Nanoscale Charge Balancing Mechanism in Alkali Substituted Calcium-Silicate-Hydrate Gels
, 2016 Alkali-activated materials and related alternative cementitious systems are sustainable material technologies that have the potential to substantially lower CO$_2$ emissions associated with the construction industry. However, the impact of augmenting the
White, Claire E., Özçelik, V. Ongun
core +2 more sources
Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements [PDF]
, 2017 The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order.
Cuesta-Garcia, Ana Maria +6 more
core +4 more sources
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
Alleviating aluminum toxicity in an acid sulfate soil from Peninsular Malaysia by calcium silicate application [PDF]
Solid Earth, 2016 In response to human population increase, the utilization of acid sulfate soils for rice cultivation is one option for increasing production. The main problems associated with such soils are their low pH values and their associated high content of ...
A. A. Elisa +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Calcium Silicates as Lime Substitute
Water Science and Technology, 1993 An experimental study has been carried out of the removal of iron from solutions of ferric chloride by lime, β-dicalcium silicate (C2S) and α-monocalcium silicate (CS) and of the treatment of the resulting sludge. C2S promoted the flocculation of iron precipitates to achieve higher settling, thickening and dewatering rates.
Pinarli, V, Saul, Gm
openaire +2 more sources
Radiopacity evaluation of calcium silicate cements
BMC Oral Health, 2023 Abstract Background The aim of this study was to compare the radiopacity of calcium silicate cements using a digital imaging method. Methods Four calcium silicate cements, NeoMTA 2, OrthoMTA, ProRoot MTA, and ...
Sen, Havva Gozde +2 more
openaire +5 more sources
Compatibility studies of N-A-S-H and C-A-S-H Gels in Alkali-Activated Geopolymer Mortar [PDF]
Iranian Journal of Chemistry & Chemical EngineeringThe primary reaction products in the alkali-activated green tuff alumino-silicate geopolymer mortar are Natrium (sodium) Aluminum-Silicate Hydrate (N-A-S-H) and Calcium Aluminum-Silicate Hydrate (C-A-S-H) gels.
Parand Razeghi Tehrani +3 more
doaj +1 more source
A comparative study of experimental configurations in synchrotron pair distribution function [PDF]
, 2019 The identification and quantification of amorphous components and nanocrystalline phases with very small crystal sizes, smaller than ~3 nm, within samples containing crystalline phases is very challenging.
Ana Cuesta +12 more
core +2 more sources