{"title":"Effect of Incorporating Nanoporous Metal Phosphate Materials on the Compressive Strength of Portland Cement","authors":"D. Wellman, K. Parker, S. Mattigod, G. Fryxell","doi":"10.1155/2008/238736","DOIUrl":null,"url":null,"abstract":"Nanoporous metal phosphate (NP-MPO) materials are being developed for removal of contaminant oxyanions (As(OH) O 3 2 − , C r O 4 2 − , and T c O 4 − ), and cations (mercury, cadmium, and lead) from water and waste streams. Following sequestration, incorporation of metal laden NP-MPOs as a portion of cement formulation would provide an efficient and low-cost way to immobilize metal laden NP-MPOs in an easily handled waste form suitable for permanent disposal. There are no known investigations regarding the incorporation of NP-MPOs in concrete and the effects imparted on the physical and mechanical properties of concrete. Results of this investigation demonstrated that incorporating of NP-MPO materials requires additional water in the concrete formulation which decreases the compressive strength. Thus, incorporation of NP-MPOs in concrete may not serve as an efficient means for long-term disposal.","PeriodicalId":7345,"journal":{"name":"Advances in Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2008-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2008/238736","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Materials Science and Engineering","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1155/2008/238736","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
Nanoporous metal phosphate (NP-MPO) materials are being developed for removal of contaminant oxyanions (As(OH) O 3 2 − , C r O 4 2 − , and T c O 4 − ), and cations (mercury, cadmium, and lead) from water and waste streams. Following sequestration, incorporation of metal laden NP-MPOs as a portion of cement formulation would provide an efficient and low-cost way to immobilize metal laden NP-MPOs in an easily handled waste form suitable for permanent disposal. There are no known investigations regarding the incorporation of NP-MPOs in concrete and the effects imparted on the physical and mechanical properties of concrete. Results of this investigation demonstrated that incorporating of NP-MPO materials requires additional water in the concrete formulation which decreases the compressive strength. Thus, incorporation of NP-MPOs in concrete may not serve as an efficient means for long-term disposal.
期刊介绍：
Advances in Materials Science and Engineering is a broad scope journal that publishes articles in all areas of materials science and engineering including, but not limited to:
-Chemistry and fundamental properties of matter
-Material synthesis, fabrication, manufacture, and processing
-Magnetic, electrical, thermal, and optical properties of materials
-Strength, durability, and mechanical behaviour of materials
-Consideration of materials in structural design, modelling, and engineering
-Green and renewable materials, and consideration of materials’ life cycles
-Materials in specialist applications (such as medicine, energy, aerospace, and nanotechnology)
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