The treatment of phosphogypsum with zeolite to use it in binding material
•Hydrosodalite allows regulating the phosphogypsum hydration and setting time.•The positive effect of sonication and of hydrosodalite additive is combined.•The content of radioactivity in PG does not exceed significantly average concentration.•The total mass of a PG final product natural radioactivi...
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| Veröffentlicht in: | Construction & building materials 2018-08, Vol.180, p.134-142 |
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| container_title | Construction & building materials |
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| creator | Nizevičienė, Dalia Vaičiukynienė, Danutė Michalik, Boguslaw Bonczyk, Michał Vaitkevičius, Vitoldas Jusas, Vacius |
| description | •Hydrosodalite allows regulating the phosphogypsum hydration and setting time.•The positive effect of sonication and of hydrosodalite additive is combined.•The content of radioactivity in PG does not exceed significantly average concentration.•The total mass of a PG final product natural radioactivity does not create any problem.
In Lithuania, there are accumulated large amounts of fertilizer by-product – phosphogypsum and there is a lack of sources of natural gypsum. Recycling of by-product is one of the effective solutions of its disposal problem. The paper describes an investigation of the hydration behavior of a phosphogypsum with zeolite (hydrosodalite) addition using ultrasound treatment. Two ultrasound treatment durations: 0.5 min and 2 min were used. It was found that hydrosodalite is an effective adsorption additive for acidic contaminants (solvable P2O5 and F) present in phosphogypsum, which allows regulating the phosphogypsum hydration and setting time. The compressive strength of samples containing 5% hydrosodalite and with 2 min sonication is 35% higher, than the compressive strength of samples without additive and sonication. In this case, the positive effect of sonication and of hydrosodalite additive is combined. Phosphogypsum as a residue from the phosphate fertilizer industry is classified as a Naturally Occurring Radioactive Material (NORM). Therefore, when it is used as an additive component to building materials radioactivity content must be checked. The different amount of the various radionuclides within the natural radioactive decay series, such as that of 226Ra, 228Ra, 228Th, 40K, and 210Pb were measured by high resolution gamma spectrometry. The results showed that activity concentration of natural radionuclides as 226Ra, 228Ra, 228Th, 40K are below the clearance limit and activity concentration indices calculated for all materials used for experiments met the existing criteria allowing to use them for construction purposes. |
| doi_str_mv | 10.1016/j.conbuildmat.2018.05.208 |
| format | Article |
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In Lithuania, there are accumulated large amounts of fertilizer by-product – phosphogypsum and there is a lack of sources of natural gypsum. Recycling of by-product is one of the effective solutions of its disposal problem. The paper describes an investigation of the hydration behavior of a phosphogypsum with zeolite (hydrosodalite) addition using ultrasound treatment. Two ultrasound treatment durations: 0.5 min and 2 min were used. It was found that hydrosodalite is an effective adsorption additive for acidic contaminants (solvable P2O5 and F) present in phosphogypsum, which allows regulating the phosphogypsum hydration and setting time. The compressive strength of samples containing 5% hydrosodalite and with 2 min sonication is 35% higher, than the compressive strength of samples without additive and sonication. In this case, the positive effect of sonication and of hydrosodalite additive is combined. Phosphogypsum as a residue from the phosphate fertilizer industry is classified as a Naturally Occurring Radioactive Material (NORM). Therefore, when it is used as an additive component to building materials radioactivity content must be checked. The different amount of the various radionuclides within the natural radioactive decay series, such as that of 226Ra, 228Ra, 228Th, 40K, and 210Pb were measured by high resolution gamma spectrometry. The results showed that activity concentration of natural radionuclides as 226Ra, 228Ra, 228Th, 40K are below the clearance limit and activity concentration indices calculated for all materials used for experiments met the existing criteria allowing to use them for construction purposes.</description><identifier>ISSN: 0950-0618</identifier><identifier>EISSN: 1879-0526</identifier><identifier>DOI: 10.1016/j.conbuildmat.2018.05.208</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Analysis ; By-product ; Compressive strength ; Gypsum ; Hydrosodalite ; Mechanical properties ; Naturally occurring radioactive material (NORM) ; Phosphogypsum ; Thermal properties ; Ultrasound treatment</subject><ispartof>Construction & building materials, 2018-08, Vol.180, p.134-142</ispartof><rights>2018 Elsevier Ltd</rights><rights>COPYRIGHT 2018 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c502t-5ea07c47a636ea9f4e6c4e57d25fe3e5592e3b3461fa35d7b9af2009439edb663</citedby><cites>FETCH-LOGICAL-c502t-5ea07c47a636ea9f4e6c4e57d25fe3e5592e3b3461fa35d7b9af2009439edb663</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.conbuildmat.2018.05.208$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Nizevičienė, Dalia</creatorcontrib><creatorcontrib>Vaičiukynienė, Danutė</creatorcontrib><creatorcontrib>Michalik, Boguslaw</creatorcontrib><creatorcontrib>Bonczyk, Michał</creatorcontrib><creatorcontrib>Vaitkevičius, Vitoldas</creatorcontrib><creatorcontrib>Jusas, Vacius</creatorcontrib><title>The treatment of phosphogypsum with zeolite to use it in binding material</title><title>Construction & building materials</title><description>•Hydrosodalite allows regulating the phosphogypsum hydration and setting time.•The positive effect of sonication and of hydrosodalite additive is combined.•The content of radioactivity in PG does not exceed significantly average concentration.•The total mass of a PG final product natural radioactivity does not create any problem.
In Lithuania, there are accumulated large amounts of fertilizer by-product – phosphogypsum and there is a lack of sources of natural gypsum. Recycling of by-product is one of the effective solutions of its disposal problem. The paper describes an investigation of the hydration behavior of a phosphogypsum with zeolite (hydrosodalite) addition using ultrasound treatment. Two ultrasound treatment durations: 0.5 min and 2 min were used. It was found that hydrosodalite is an effective adsorption additive for acidic contaminants (solvable P2O5 and F) present in phosphogypsum, which allows regulating the phosphogypsum hydration and setting time. The compressive strength of samples containing 5% hydrosodalite and with 2 min sonication is 35% higher, than the compressive strength of samples without additive and sonication. In this case, the positive effect of sonication and of hydrosodalite additive is combined. Phosphogypsum as a residue from the phosphate fertilizer industry is classified as a Naturally Occurring Radioactive Material (NORM). Therefore, when it is used as an additive component to building materials radioactivity content must be checked. The different amount of the various radionuclides within the natural radioactive decay series, such as that of 226Ra, 228Ra, 228Th, 40K, and 210Pb were measured by high resolution gamma spectrometry. The results showed that activity concentration of natural radionuclides as 226Ra, 228Ra, 228Th, 40K are below the clearance limit and activity concentration indices calculated for all materials used for experiments met the existing criteria allowing to use them for construction purposes.</description><subject>Analysis</subject><subject>By-product</subject><subject>Compressive strength</subject><subject>Gypsum</subject><subject>Hydrosodalite</subject><subject>Mechanical properties</subject><subject>Naturally occurring radioactive material (NORM)</subject><subject>Phosphogypsum</subject><subject>Thermal properties</subject><subject>Ultrasound treatment</subject><issn>0950-0618</issn><issn>1879-0526</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>N95</sourceid><recordid>eNqNkUFr3DAQhUVpodu0_0Gl19od2ZZsH8PSpoFALslZyPLIO4stL5Lckv76KmwPCeyhCOmB-N4bmMfYZwGlAKG-HUu7-mGjeVxMKisQXQkya_eG7UTX9gXISr1lO-glFKBE9559iPEIAKpS1Y7dPhyQp4AmLegTXx0_HdaY7_R0itvCf1M68D-4zpQyt_ItIqfEyfOB_Eh-4nkuBjLzR_bOmTnip396xR5_fH_Y_yzu7m9u99d3hZVQpUKigdY2rVG1QtO7BpVtULZjJR3WKGVfYT3UjRLO1HJsh964CqBv6h7HQan6in05505mRk3erSkYu1C0-lpKANE0QmaquEBN6DGYefXoKH-_4ssLfD4jLmQvGr6-MAxbJI8xP5GmQ4qT2WJ8jfdn3IY1xoBOnwItJjxpAfq5SX3UL5rUz01qkFm77N2fvZjX-osw6GgJvcWRAtqkx5X-I-UvUj6sDw</recordid><startdate>20180820</startdate><enddate>20180820</enddate><creator>Nizevičienė, Dalia</creator><creator>Vaičiukynienė, Danutė</creator><creator>Michalik, Boguslaw</creator><creator>Bonczyk, Michał</creator><creator>Vaitkevičius, Vitoldas</creator><creator>Jusas, Vacius</creator><general>Elsevier Ltd</general><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>XI7</scope></search><sort><creationdate>20180820</creationdate><title>The treatment of phosphogypsum with zeolite to use it in binding material</title><author>Nizevičienė, Dalia ; Vaičiukynienė, Danutė ; Michalik, Boguslaw ; Bonczyk, Michał ; Vaitkevičius, Vitoldas ; Jusas, Vacius</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c502t-5ea07c47a636ea9f4e6c4e57d25fe3e5592e3b3461fa35d7b9af2009439edb663</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Analysis</topic><topic>By-product</topic><topic>Compressive strength</topic><topic>Gypsum</topic><topic>Hydrosodalite</topic><topic>Mechanical properties</topic><topic>Naturally occurring radioactive material (NORM)</topic><topic>Phosphogypsum</topic><topic>Thermal properties</topic><topic>Ultrasound treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nizevičienė, Dalia</creatorcontrib><creatorcontrib>Vaičiukynienė, Danutė</creatorcontrib><creatorcontrib>Michalik, Boguslaw</creatorcontrib><creatorcontrib>Bonczyk, Michał</creatorcontrib><creatorcontrib>Vaitkevičius, Vitoldas</creatorcontrib><creatorcontrib>Jusas, Vacius</creatorcontrib><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Business Insights: Essentials</collection><jtitle>Construction & building materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nizevičienė, Dalia</au><au>Vaičiukynienė, Danutė</au><au>Michalik, Boguslaw</au><au>Bonczyk, Michał</au><au>Vaitkevičius, Vitoldas</au><au>Jusas, Vacius</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The treatment of phosphogypsum with zeolite to use it in binding material</atitle><jtitle>Construction & building materials</jtitle><date>2018-08-20</date><risdate>2018</risdate><volume>180</volume><spage>134</spage><epage>142</epage><pages>134-142</pages><issn>0950-0618</issn><eissn>1879-0526</eissn><abstract>•Hydrosodalite allows regulating the phosphogypsum hydration and setting time.•The positive effect of sonication and of hydrosodalite additive is combined.•The content of radioactivity in PG does not exceed significantly average concentration.•The total mass of a PG final product natural radioactivity does not create any problem.
In Lithuania, there are accumulated large amounts of fertilizer by-product – phosphogypsum and there is a lack of sources of natural gypsum. Recycling of by-product is one of the effective solutions of its disposal problem. The paper describes an investigation of the hydration behavior of a phosphogypsum with zeolite (hydrosodalite) addition using ultrasound treatment. Two ultrasound treatment durations: 0.5 min and 2 min were used. It was found that hydrosodalite is an effective adsorption additive for acidic contaminants (solvable P2O5 and F) present in phosphogypsum, which allows regulating the phosphogypsum hydration and setting time. The compressive strength of samples containing 5% hydrosodalite and with 2 min sonication is 35% higher, than the compressive strength of samples without additive and sonication. In this case, the positive effect of sonication and of hydrosodalite additive is combined. Phosphogypsum as a residue from the phosphate fertilizer industry is classified as a Naturally Occurring Radioactive Material (NORM). Therefore, when it is used as an additive component to building materials radioactivity content must be checked. The different amount of the various radionuclides within the natural radioactive decay series, such as that of 226Ra, 228Ra, 228Th, 40K, and 210Pb were measured by high resolution gamma spectrometry. The results showed that activity concentration of natural radionuclides as 226Ra, 228Ra, 228Th, 40K are below the clearance limit and activity concentration indices calculated for all materials used for experiments met the existing criteria allowing to use them for construction purposes.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.conbuildmat.2018.05.208</doi><tpages>9</tpages></addata></record> |
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| subjects | Analysis By-product Compressive strength Gypsum Hydrosodalite Mechanical properties Naturally occurring radioactive material (NORM) Phosphogypsum Thermal properties Ultrasound treatment |
| title | The treatment of phosphogypsum with zeolite to use it in binding material |
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