Partial replacement of cement by ground granulated blast furnace slag and silica fume in two‐stage concrete (preplaced aggregate concrete)
An experimental investigation was carried out to enhance the properties of two‐stage concrete, also known as preplaced aggregate concrete (PAC), by adding ground granulated blast furnace slag (GGBS) and silica fume (SF) as partial replacement of cement at different proportions. PAC was produced usin...
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| Veröffentlicht in: | Structural concrete : journal of the FIB 2021-01, Vol.22 (S1), p.E466-E473 |
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| container_title | Structural concrete : journal of the FIB |
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| creator | Das, Kunal K. Lam, Eddie S. S. Tang, Ho H. |
| description | An experimental investigation was carried out to enhance the properties of two‐stage concrete, also known as preplaced aggregate concrete (PAC), by adding ground granulated blast furnace slag (GGBS) and silica fume (SF) as partial replacement of cement at different proportions. PAC was produced using the gravity process by first placing the coarse aggregates into the formwork and then injecting a grout to fill in the voids in‐between the aggregates. Partial replacement of cement by GGBS and SF at 30 and 10%, respectively were found to be a suitable mix for PAC. Even though incorporation of GGBS and SF increased the shrinkage, strength and durability were improved. Generally, shrinkage produced by PAC was significantly lower than that of conventional concrete. By applying preplaced aggregate with an improved composition of grouts, properties of concrete, like strength and permeability, can be enhanced with shrinkage kept within an acceptable level. |
| doi_str_mv | 10.1002/suco.201900494 |
| format | Article |
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S. ; Tang, Ho H.</creator><creatorcontrib>Das, Kunal K. ; Lam, Eddie S. S. ; Tang, Ho H.</creatorcontrib><description>An experimental investigation was carried out to enhance the properties of two‐stage concrete, also known as preplaced aggregate concrete (PAC), by adding ground granulated blast furnace slag (GGBS) and silica fume (SF) as partial replacement of cement at different proportions. PAC was produced using the gravity process by first placing the coarse aggregates into the formwork and then injecting a grout to fill in the voids in‐between the aggregates. Partial replacement of cement by GGBS and SF at 30 and 10%, respectively were found to be a suitable mix for PAC. Even though incorporation of GGBS and SF increased the shrinkage, strength and durability were improved. Generally, shrinkage produced by PAC was significantly lower than that of conventional concrete. By applying preplaced aggregate with an improved composition of grouts, properties of concrete, like strength and permeability, can be enhanced with shrinkage kept within an acceptable level.</description><identifier>ISSN: 1464-4177</identifier><identifier>EISSN: 1751-7648</identifier><identifier>DOI: 10.1002/suco.201900494</identifier><language>eng</language><publisher>Weinheim: WILEY‐VCH Verlag GmbH & Co. KGaA</publisher><subject>Aggregates ; Concrete aggregates ; Formwork ; GGBS ; Granulation ; ground granulated blast furnace slag ; Grout ; preplaced aggregate concrete ; Shrinkage ; Silica fume ; Silicon dioxide ; two‐stage concrete</subject><ispartof>Structural concrete : journal of the FIB, 2021-01, Vol.22 (S1), p.E466-E473</ispartof><rights>2020 . International Federation for Structural Concrete</rights><rights>2021 fib. 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S.</creatorcontrib><creatorcontrib>Tang, Ho H.</creatorcontrib><title>Partial replacement of cement by ground granulated blast furnace slag and silica fume in two‐stage concrete (preplaced aggregate concrete)</title><title>Structural concrete : journal of the FIB</title><description>An experimental investigation was carried out to enhance the properties of two‐stage concrete, also known as preplaced aggregate concrete (PAC), by adding ground granulated blast furnace slag (GGBS) and silica fume (SF) as partial replacement of cement at different proportions. PAC was produced using the gravity process by first placing the coarse aggregates into the formwork and then injecting a grout to fill in the voids in‐between the aggregates. Partial replacement of cement by GGBS and SF at 30 and 10%, respectively were found to be a suitable mix for PAC. Even though incorporation of GGBS and SF increased the shrinkage, strength and durability were improved. Generally, shrinkage produced by PAC was significantly lower than that of conventional concrete. By applying preplaced aggregate with an improved composition of grouts, properties of concrete, like strength and permeability, can be enhanced with shrinkage kept within an acceptable level.</description><subject>Aggregates</subject><subject>Concrete aggregates</subject><subject>Formwork</subject><subject>GGBS</subject><subject>Granulation</subject><subject>ground granulated blast furnace slag</subject><subject>Grout</subject><subject>preplaced aggregate concrete</subject><subject>Shrinkage</subject><subject>Silica fume</subject><subject>Silicon dioxide</subject><subject>two‐stage concrete</subject><issn>1464-4177</issn><issn>1751-7648</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkM9KAzEQxoMoWKtXzwEvetiaZLO7yVGK_6CgoD2HbDZZtqSbmmQpvfkAHnxGn8SUlnr0NB8zv2-G-QC4xGiCESK3YVBuQhDmCFFOj8AIVwXOqpKy46RpSTOKq-oUnIWwSHzSxQh8vUofO2mh1ysrlV7qPkJn4F7VG9h6N_RNKrIfrIy6gbWVIUIz-D4ZYLCyhTIRobOdkqm_1LDrYVy7n8_vEGWroXK98jpqeL3a32mgbFuv27TwML05BydG2qAv9nUM5g_379OnbPby-Dy9m2UqZ5RmDVU5YaWssVEFZ40xOSpYWTSYoKoutOKEKc4bWknJckRLoxlmRmNFiSlrk4_B1W7vyruPQYcoFm77jQ2CUE54lSNcJGqyo5R3IXhtxMp3S-k3AiOxTVxsExeHxJOB7wzrzurNP7R4m09f_ry_hCKI5g</recordid><startdate>202101</startdate><enddate>202101</enddate><creator>Das, Kunal K.</creator><creator>Lam, Eddie S. 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S. ; Tang, Ho H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3844-d4c3286ab1fc598dff305865d1207b5ec928c99d47aa83046fe818fe1c42f6bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aggregates</topic><topic>Concrete aggregates</topic><topic>Formwork</topic><topic>GGBS</topic><topic>Granulation</topic><topic>ground granulated blast furnace slag</topic><topic>Grout</topic><topic>preplaced aggregate concrete</topic><topic>Shrinkage</topic><topic>Silica fume</topic><topic>Silicon dioxide</topic><topic>two‐stage concrete</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Das, Kunal K.</creatorcontrib><creatorcontrib>Lam, Eddie S. S.</creatorcontrib><creatorcontrib>Tang, Ho H.</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Structural concrete : journal of the FIB</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Das, Kunal K.</au><au>Lam, Eddie S. S.</au><au>Tang, Ho H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Partial replacement of cement by ground granulated blast furnace slag and silica fume in two‐stage concrete (preplaced aggregate concrete)</atitle><jtitle>Structural concrete : journal of the FIB</jtitle><date>2021-01</date><risdate>2021</risdate><volume>22</volume><issue>S1</issue><spage>E466</spage><epage>E473</epage><pages>E466-E473</pages><issn>1464-4177</issn><eissn>1751-7648</eissn><abstract>An experimental investigation was carried out to enhance the properties of two‐stage concrete, also known as preplaced aggregate concrete (PAC), by adding ground granulated blast furnace slag (GGBS) and silica fume (SF) as partial replacement of cement at different proportions. PAC was produced using the gravity process by first placing the coarse aggregates into the formwork and then injecting a grout to fill in the voids in‐between the aggregates. Partial replacement of cement by GGBS and SF at 30 and 10%, respectively were found to be a suitable mix for PAC. Even though incorporation of GGBS and SF increased the shrinkage, strength and durability were improved. Generally, shrinkage produced by PAC was significantly lower than that of conventional concrete. By applying preplaced aggregate with an improved composition of grouts, properties of concrete, like strength and permeability, can be enhanced with shrinkage kept within an acceptable level.</abstract><cop>Weinheim</cop><pub>WILEY‐VCH Verlag GmbH & Co. KGaA</pub><doi>10.1002/suco.201900494</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-6335-5971</orcidid></addata></record> |
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| ispartof | Structural concrete : journal of the FIB, 2021-01, Vol.22 (S1), p.E466-E473 |
| issn | 1464-4177 1751-7648 |
| language | eng |
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| source | Wiley Online Library All Journals |
| subjects | Aggregates Concrete aggregates Formwork GGBS Granulation ground granulated blast furnace slag Grout preplaced aggregate concrete Shrinkage Silica fume Silicon dioxide two‐stage concrete |
| title | Partial replacement of cement by ground granulated blast furnace slag and silica fume in two‐stage concrete (preplaced aggregate concrete) |
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