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abstract This investigation is conducted to study the effects of adding of dust and burnt of Date Seeds Powder on properties of clay brick. The soil was taken from Al-Furat brick plant in Hilla with percentages (21 , 36 , 43) (Sand , Silt , Clay ) respectively while for the added material were ( 5 , 10 , 20%) by weight of dry soil. The specimens were made by special mold with dimension (5 , 6 , 12) cm and burnt at temperature (900o) . The engineering properties of produced brick were investigated with two situation (nonburnt dust ) and (burnt dust). The results illustrate that the addition of nonburnt added material lead to a increase in water absorption and an efflorescence except the percentage (20), while the density and the compressive strength were decreased . Results with burnt dust showed that the increasing in water absorption and decreas in efflorescence , density and comprssine strength except at percentage (5) , It decreased the efflorsence clearly.
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- Date Seeds Dust
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