¿ƔŷŕƈŬŏ : ŶƔƊŰś ƇŕƄũ ŽƔſŦ ƉŪƏƅŔ ŞŕśƊƙ řƊŕŬũŦ řſƔſŦ řƅŪŕŷ 10 ŴƒƈŮř ƇŨƍƃŒ ŻƒŽŤ ƅœƂŧ ŜœřƈƗ ŗƃŨœŵ ŗŽƒŽŤ ŗƈœŪŧŤ * * ţƒŧŋřŕ ųŒŧřŤŒ ŖŇŒŧŕ ƏƄŵ Ũőœš ŚšŕƃŒ 14 / 8 / 2001 . ť . ¾ƒŵœƆŪŒ ƅƃœŪ ŗƒťœƈ ** ťŌŒť ťƆšƆ ťŵť ** ťŵœŪƆ ŦœřŪŒ / ŘŒŇœŬƈƗŒƍ ŇœƈŕƃŒ Řœƒƈƀř ŗŪťƈƋ ƅŪſ / ¾ŮƍƆƃŒ ŗƒƈƀřƃŒ ŗƒƄƂƃŒ ŗŮƚŤƃŒ ƎťŊ Ƒż ŗƆťŤřŪƆƃŒ ŘœƈœƀřƄƃ ŚƒťšƃŒ ŧƍűřƃŒ Ŝœřƈō ŗƈœŪŧŤƃŒ Əƃō ŧƍƌŲ ųŒƍƈŊ ŗƈŧœƀƆ ŗŽƄřŤƆ ŘœżœśƂ ŘŒŦ ŗƈœŪŧŤƃŒ ƇƆ ŗƒťœƒřŵƙŒ ŗƈœŪŧŤƃœŕ . žŧű ŖťŶŕ œƌƒƄŵ ¾ƍŮšƃŒ ƇƂƆƒ ŗżœśƂƃŒ ƉŦƋƍ Ǝťšō ƇŨƍºƃŒ ŻºƒŽŤƃŒ ƅœºƂŧƃŒ ¾œƆŶřŪŒ žŧűƃŒ ƉŦƋ Lightweight aggregates . ƑƃœšƃŒ ŚšŕƃŒ Żťƌƒ Əƃō ŴƒƈŮř ųŒƍƈŊ ŻƒŽŤƃŒ ƅœƂŧƃŒ ƇƆ ) ƅŵœƈƃŒƍ ƇŬŤƃŒ ( ƅś ƇƆƍ Ŝœřƈō ¾řƂ ŗŕŪœƈƆ ŗƒťœŮřſŒ ŗŽƄƂŕƍ œƒƄšƆ ŖŧżƍřƆ ťŒƍƆ ƇƆ ťƒŞ ƐŧŒŧš ¾Ũŵ ŘŒŦ ŗŽƒŽŤ ŗƒƈœŪŧŤ . ƇºƆ Ƈƒŵƍºƈ ƏƄŵ ¾ƍŮšƃŒ ƅř ťſƍ ŴƒƈŮřƃŒ ƇƆ Ƈƒřƀƒŧű ƅŒťŤřŪœŕ ŻƒŽŤƃŒ ƅœƂŧƃŒ žƄűŊ ųƍƈƃŒ ƏƄŵ ¾ƍƕŒ ŇœŕťšƃŒ ƅœƂŧ ƊŶƒƈŮř ƅř ƏºƄŵ ťƍºŞƍƆ ¾Žű Ƈƒű ƇƆ ŗŕŪƈŕ ¾ŮƍƆƃŒ ŗƀűƈƆ Ƒż ŗƄŞť Řœżœš 50 % ƇƒŧŹƍ Silt ŗŕŪƈŕ 50 % ƅœƂŧ ƏƄŵ ¾ƍŮšƃŒ ƅřƍ ŗżœśƂŕ 860 ƅźƂ / ƅ 3 . žºƄűŊƍ ƇƒŶƒŕŧƃŒ ƅœƂŧ ƑƈœśƃŒ ƏƄŵ ƊºƈťŶƆ ƐŦƃŒƍ Ĺ ŒťŞ ŖŧƒŕƂ ŘœƒƆƂŕ Ǝƍƈƒƈ ŗŲżœšƆ Ƒż ťƍŞƍƆƃŒ ƑšőœŽŮƃŒ ƑŶƒŕűƃŒ ƇƒűƃŒ ťœƆřŵŒ ƅřƍ ƒœƈƍƃŧƍƆřƈƍƆƃŒ ƍƋ ƅœƂŧ ƏƄŵ ¾ƍŮšƃŒ ƅřƍ ƇƒƃŌœƂƃŒƍ Ř ŗżœśƂŕ 750 ƅźƂ / ƅ 3 ŗºƀƒŧűƍ žŒŧºŶƃŒ Ƒż Ĺ œƀŕœŪ ųƍƈƃŒ ŒŦƋ ŴƈŮƒ ƅƃƍ ŗƒťœŮřſŒƍ ŗűƒŪŕ ƊŶƒƈŮř . ƃ ťƀ ŘƒŧŞŊ Ƒż œƆƋťœƆřŵŒ ƅřƍ œƆƌƃ ŗƒŪœƒƀƃŒ ŘœŮƍšŽƃŒ Ŝœřƈō ¾řƂ ƏƄŵ œƈƄŮš ťƀż ŗƒƈœŪŧŤƃŒ ¾řƂƃŒ Œ ƅœƂŧ ƇƆ ŗƄƆœšƃŒ ƇŒŧťŞƃŒ Ƒż ¾ƆŶřŪř ŗŽƒŽŤ ŗƒƈœŪŧŤ ŧƆŶŕ űźŰƄƃ œƌƄƆšř Ŗƍſ ŘƈœƂƍ Ňœŕťšƃ 28 ƅƍƒ 15.33 Ƈřƍƒƈ / ƅºƄƆ 2 œƌřżœśƂƍ 1770 ƅźƂ / ƅ 3 œƆŊ Ƒż ƅťŤřŪŒ ťƀż ƇƒŶƒŕŧƃŒ ƅœƂŧ Ŝœřƈō ŗƒƈœŪŧŤ ¾řƂ ůŒŧŹƕ ¾ƒŮƍřƃŒ ¾ƆœŶƆ ƇœƂ ťſƍ ƐŧŒŧšƃŒ ¾ŨŶƃŒ ƐŧŒŧšƃŒ K Ɗƃ 0.55 űŒƍ / ƅ . ŗżœśƂŕƍ ŖŧŶŪ ƍƒƄƂ 1640 ƅźƂ / ƅ 3 . ŗƃŒťƃŒ ŘœƆƄƂƃŒ : ƇƒűƃŒ ŗƒƈœŪŧŤƃŒ ¾řƂƃŒ ƇŨƍƃŒ ŻƒŽŤƃŒ ƅœƂŧƃŒ . Processing Lightweight Aggregate to produce Lightweight Concrete Dr.Nadia Salim Esmaeil Daad Mohamed Daood Ass. Prof. /Civil Department Ass. Prof. /Civil Department Abstract The modern techniques development used in the production of concrete led to the emergence of types of concrete with different densities compared to normal concrete . This research aimed manufacturing types of lightweight aggregate (coarse and fine) and then the production of lightweight concrete blocks with a good thermal insulation , by using available locally materials . Two types of lightweight aggregate , have been produced by using two methods of manufacturing , first type , where AL-Hadbaa aggregate , produced from Clay , which is on the edge of the Tigris river in Mosul , using 50% Clay and 50% silt , the density obtained about 860 Kg/m 3 . The second AL-Rabean aggregate , was the adoption of natural laminated Clay which is located in Nineveh province , in very large quantities , it's mineralization is Montmurlite and kaolinite , density obtained was 750 Kg/m 3 , this type did not produce in Iraq and which it's manufactured method simple and economic . The standard tests have been made and were adopted in the production of concrete blocks , lightweight concrete block produced from AL- Hadbaa aggregate , used in bearing walls , have 28 – day compressive strength 15.33 N/mm 2 and density about 1770 Kg/m 3 . The AL-Rabeaan aggregate used to product concrete block for the purposes of thermal insulation , it's thermal conductivity coefficient was 0.55 W/m.kcal and have a density 1640 Kg/m 3 . Keywords : Clay , lightweight aggregate , concrete block . ϢϠΘγ 18 - 5 - 2009 ϞΒϗ 28 - 1 - 2010
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Lightweight aggregates . ) (
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50 %Silt50 %860/3.
750/3
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2815.33/2
1770/3
K0.55/.1640/3 .
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Processing Lightweight Aggregate to produce LightweightConcrete
Dr.Nadia Salim EsmaeilDaad Mohamed DaoodAss. Prof. /Civil DepartmentAss. Prof. /Civil Department
AbstractThe modern techniques development used in the production of concrete led to the emergence
of types of concrete with different densities compared to normal concrete . This research aimedmanufacturing types of lightweight aggregate (coarse and fine) and then the production oflightweight concrete blocks with a good thermal insulation , by using available locally materials. Two types of lightweight aggregate , have been produced by using two methods ofmanufacturing , first type , where AL-Hadbaa aggregate , produced from Clay , which is on theedge of the Tigris river in Mosul , using 50% Clay and 50% silt , the density obtained about 860Kg/m3 . The second AL-Rabean aggregate , was the adoption of natural laminated Clay which islocated in Nineveh province , in very large quantities , it's mineralization is Montmurlite andkaolinite , density obtained was 750 Kg/m3 , this type did not produce in Iraq and which it'smanufactured method simple and economic . The standard tests have been made and wereadopted in the production of concrete blocks , lightweight concrete block produced from AL-Hadbaa aggregate , used in bearing walls , have 28 – day compressive strength 15.33 N/mm2 anddensity about 1770 Kg/m3 .
The AL-Rabeaan aggregate used to product concrete block for the purposes of thermalinsulation , it's thermal conductivity coefficient was 0.55 W/m.kcal and have a density 1640Kg/m3 .
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