3.7 MPa. Hollow concrete blocks can also be produced by using wastes generated by stone crushers, quarry and stone processing unit .In this paper an attempt has been made to know the effect of replacement of sand by quarry dust on the properties of hollow concret3e blocks. Both partial replacements (i.e. 50%) and complete replacement has been
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The 75 bags were loaded into the gas kiln gradually for 3 days. Chemical analysis of CHA was carried out in the laboratory of Chemistry Department of University of Lagos, Nigeria. The properties are shown in Table 1. 2.2 Manufacture of Sandcrete Blocks In this study, the hollow blocks were manufactured with the use of the fabricating machine.
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SUITABILITY OF SAW DUST ASH-LIME MIXTURE FOR PRODUCTION OF SANDCRETE HOLLOW BLOCKS . × ... SUITABILITY OF SAW DUST ASH-LIME MIXTURE FOR PRODUCTION OF SANDCRETE HOLLOW BLOCKS. Terlumun Adagba. 2011, Nigerian Journal of Technology . See full PDF download Download PDF. Related papers.
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The construction industry has been grappling with what waste material can substitute for sand in producing quality hollow concrete blocks. This gap motivated the researchers to conduct this study, which aimed to investigate the rigidity of concrete blocks using sawdust as a substitute for sand. The study was designed to test the compressive strength of …
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The suitability of Rice Husk Ash (RHA) and Saw Dust Ash (SDA)blend, which are waste materials from the Agricultural and Timber Industries respectively, as partial replacement of Ordinary …
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Sandcrete hollow blocks that were replaced with sawdust as partial replacement in fine aggregate can be used for non- load bearing walls and it can be used for internal partitioning as non-load …
WhatsApp: +86 18221755073Saw Dust Ash-Lime Mixture for Sandcrete Hollow Blocks 81 Table 1: Chemical Properties of SDA. Constituents % by weight SiO 2 67.95 AL 2O 3 4.29 F 2O 3 2.15 CaO 9.47 MgO 5.84 MnO 0.01 Na 2O 0.06 K 2O 0.11 P 2O 5 0.46 SO 3 0.56 dust is usually used as domestic fuel. The re-sulting ash known as saw-dust ash is a form of pozzolana. Saw dust is in ...
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Abstract: The use of saw-dust ash (SDA) mixed with 45% slaked lime for production ofsandcrete hollow blocks was investigated. The aim was to determine the percentageSDA lime and water-cement ratio ...
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Adebaku et al. [9] incorporated sawdust in hollow concrete sand blocks and proved that at 10% replacement sawdust with sand in mortar, the overall cost and weight can be reduced by 3% and 10% ...
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Block Weights : The unit weight of each samples were taken and the result is as shown in figure 2. The results obtained shows that the introduction of sawdust reduced the unit weight of the hollow blocks according to the percentage added. There was, however, a significant decrease in samples with 10% sawdust replacement
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Ravindrarajah et al. [35] conducted an experimental study on concrete blocks made with saw dust and observed compressive strength more than 12 MPa. Recently, Siddique et al. [26] identified 5% as the optimal replacement level of sand with sawdust and found comparable mechanical properties with the control concrete mixture.
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Another study by Usman et al. (2018) also showed decrease in compressive strength of mortar on incorporation of coarse saw dust of grading between 1 and 1000 mm (D 50 ¼ 210 mm) as cement ...
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Saw Dust Ash as Partial Replacement for Cement in the Production of Sandcrete Hollow Blocks ... Pozzolanicity was carried out in the laboratory of Lafarge Cement (WAPCO) Nigeria Plc, Sagamu Works ...
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Two sets of mixture with six samples of each for a total of 12 samples were prepared and tested. Findings of the study revealed that the concrete mixture using sawdust is comparable to the compressive strength of concrete mixture using sand as fine aggregate. Thus, the sawdust can be considered as an alternative for sand as fine aggregate.
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Hollow concrete blocks (HCBs) are substitutes for conventional bricks and stones in building construction. Experimental testing has been performed on the feasibility of producing HCBs from...
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The use of saw-dust ash (SDA) mixed with 45% slaked lime for production of sandcrete hollow blocks was investigated. The aim was to determine the percentage SDA lime and water-cement ratio that would give the 28-day maximum strength. Saw dust was burnt and the ash sieved using a 150 micrometer sieve. The ash mixed with 45% slake lime was used to partially replace …
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the potential of concrete hollow blocks with PP pellets as partial replacement for sand. ... and saw dust can also be used as partial replacement for cement, as summarized in one article [8 ...
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ash (Dwivedi et al., 2006), saw dust ash (Elinwa and Ejeh, 2004; Okunade, 2008; Raheem et al. 2012), bagasse ash (Chusilp et al., 2009) to partially replaced cement in concrete or mortar. In this research, saw dust ash was used to partially replace ordinary Portland cement in the production of sandcrete hollow blocks. 2.
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Prompted by the high cost of building materials as well as the amount of dead load weight generated by block wall on beams and columns in partitioning works most especially in high rise buildings, this project work on the use of sawdust as admixture in production of hollow sandcrete blocks was carried out in order to investigate a possible solution to the problems. The research …
WhatsApp: +86 18221755073produce hollow blocks from mixed sawdust using partial replacement for sand and Portland cement as a binder. Percentage water absorption, bulk density and compressive
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ascertain the relationship between sawdust replacement in hollow sandcrete blocks and compressive strength. From the result gathered, the compressive strength compared with …
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Moreover, other tools that can be used to analyze the rigidity of developed hollow concrete blocks using sawdust as a substitute for sand are also recommended. Keywords: Concrete Blocks, Sawdust, Compressive Strength Machine, Aggregates. JEL Classification: O14.
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The high cost of conventional Building materials is a major factor affecting housing delivery in Nigeria. This has necessitated research into alternative materials of construction. This paper presents the results of an investigation carried out on the use of Saw Dust Ash(SDA) as partial replacement for Ordinary Portland Cement(OPC) in sandcrete hollow blocks, in order to …
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Hollow concrete blocks (HCBs) are substitutes for conventional bricks and stones in building construction. Experimental testing has been performed on the feasibility of producing HCBs from sawdust (SD). Sawdust is substituted with fine aggregate (pumice) by weight proportions 3, 6, and 9%. Sawdust is treated with tap water to remove foreign materials. Different tests were …
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This work used moulded hollow sandcrete block, laterite, saw dust and PET bottle all purchased . ... Adeyinka (2011), carried out a very detailed assessment of h eat flow through a ty pical wall i n .
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Failure of blocks was ductile for both types of concrete, the blocks of lightweight concrete with saw dust presented a major degradation. The numerical analyses performed with ATENA software indicated a similar type of failure as that from the tests that indicates a good correlation of results.
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The mortar and saw dust were mixed thoroughly using shovel and cement were mixed thoroughly with water using electric mixer. After 28 days, the produced hollow blocks were transported to Associated Services and Testing Center (AS TEC) in Pala Pala, Dasmarinas, Cavite to determine its compressive strength, It was also transported, measured and ...
WhatsApp: +86 18221755073The use of sawdust ash (SDA) mixed with 45% slaked lime for production of sandcrete hollow blocks was investigated. The aim was to determine the percentage SDA lime and water-cement ratio that would give the 28-day maximum strength. Saw dust was burnt and the ash sieved using a 150 micrometer sieve.
WhatsApp: +86 18221755073used as walling materials. The quality of sand Crete blocks is the function of the method employed in the production and the properties of the constituent's materials (Raheem et al, 2012). The materials used for production of sand Crete hollow blocks are cements, sand and water. Cement is highly noted to be the most expensive out of these
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Abstract – This project aims to convince that sawdust blocks can be seen as an alternative to sand made blocks. Experimental study was carried out on sawdust blocks prepared by …
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