Results 21 to 30 of about 512,458 (303)

A practical method for preparing Ca(OH)2 nanodispersions for the consolidation of archaeological calcareous stones [PDF]

open access: yes, 2018
Exposure to atmospheric conditions results in considerable deterioration of calcareous building stones, lime mortars and plasters in archaeological monuments, requiring several conservation treatments.
Caner, Evin, Caner-Saltık, E.N.
core   +1 more source

Performance and sustainability overview of sodium carbonate activated slag materials cured at ambient temperature

open access: yesResources, Environment and Sustainability, 2021
The production of Portland cement (PC) which is the main binder in conventional cementitious materials contributes about 7% to the world’s anthropogenic carbon dioxide emission.
Adeyemi Adesina
doaj   +1 more source

One-part alkali activated slag using Ca(OH)2 and Na2CO3 instead of NaOH as activator: more excellent compressive strength and microstructure

open access: yesMaterials Research Express, 2021
In this paper, sodium carbonate and calcium hydroxide instead of sodium hydroxide used as composite activators, and slag are applied to prepare one-part alkali-activated slag.
Shiming Zhou   +4 more
doaj   +1 more source

Effects of sodium carbonate on self-healing properties of cement–slag–limestone powder ternary cementitious material

open access: yesCase Studies in Construction Materials, 2022
Cement–slag–limestone ternary cementitious materials are cement-based materials with significant potential for applications, it exhibits extremely low carbon emissions and excellent workability. Now, to lower CO2 emissions of concrete industry the use of
Yi-Sheng Wang, Xiao-Yong Wang
doaj   +1 more source

Preparation of Potassium Dichromate Crystals from the Chromite Concentrate by Microwave Assisted Leaching

open access: yesCrystals, 2017
In the present investigation, the oxidizing roasting process of chromite with sodium carbonate to prepare potassium dichromate crystals was studied in the microwave field with air, by heating the chromite and sodium carbonate.
Hua Liu   +5 more
doaj   +1 more source

Carbonation of Sodium Aluminate/Sodium Carbonate Solutions for Precipitation of Alumina Hydrates—Avoiding Dawsonite Formation

open access: yesCrystals, 2021
Experimental work has been performed to investigate the precipitation mechanism of aluminum hydroxide phases from sodium aluminate/sodium carbonate pregnant solutions by carbon dioxide gas purging.
Danai Marinos   +4 more
doaj   +1 more source

Thermodynamic aspect of sodium carbonate mechanical transformations under different environment [PDF]

open access: yesScience of Sintering, 2020
During mechanical activation, the energy of treated material is raised to a higher level that can lead to the chemical transformation of the activated material.
Đorđević Nataša G.   +2 more
doaj   +1 more source

A separation of the reactions in photosynthesis by means of intermittent light [PDF]

open access: yes, 1932
Experiments on photosynthesis in intermittent light have been made on two occasions. Brown and Escombe, in 1905, made use of a rotating sector to study the effect of light intensity on the photosynthesis of leaves.
Arnold, William, Emerson, Robert
core   +2 more sources

Reduction of acrylamide in Petit Beurre and Madar biscuits using whey protein powder and sodium bicarbonate [PDF]

open access: yesPizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2015
Acrylamide is a chemical compound which starchy foods such as biscuits are prone to formation. Since biscuit is one of the most consumed floury products specially for children, the objective of this research is to assay the effect of the replacement of ...
Razieh Niazmand   +2 more
doaj   +1 more source

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