آخرین محصولات
Recycling of Periwinkle Shell Waste as Partial Substitute for …
Figure 6 depicts the results of the water absorption tendency tests of the hollow sandcrete block samples containing CPWS as replacement for sand and stone dust relative to the reference hollow sandcrete block. The water absorption of sandcrete block samples was estimated after 28 days of curing age when the blocks were expected to have fully ...
(PDF) Uses of sawdust as admixture in production …
The 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 …
Saw Dust Ash as Partial Replacement for Cement in the …
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 ...
Performance Evaluation of Hollow Concrete Blocks Made With Sawdust
Adding a higher percentage of sawdust decreases the compressive strength. Similar trends were observed in literature [16-20] for a replacement of 2% and higher with sawdust. Since saw dust is finer than the pumice and fills the gap between the particles and increases bonding strength at the microscopic level. The Density (kg/m3) L
Sawdust as supplementary aggregate for concrete hollow blocks …
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 ...
INNOVATIVE APPLICATION OF SAWDUST …
They produced hollow blocks used mix ratio 1:8 (cement:sand) at different replacement level of sand and sawdust (100:0, 90:10, 80:20, 70:30, 60:40). The water/cement ratio used 0.5, 0.54, 0.55, 0.56 and 0.57.
OPTIMIZING COMPRESSIVE STRENGTH …
15% of the sand fraction15% of the sand fraction in hollow building blocks of the size and mix ratiin hollow building blocks of the size and mix ratioo adopted herein. adopted herein. adopted herein. Keywords: Keywords: hollow building Blocks, granite dust, san d, partial replacement, compressive strength 1. 11.. 1.
IMPROVEMENT THE MECHANICAL AND THERMAL …
percentages on the thermal and mechanical properties of concrete hollow blocks (CHB).Different types of admixtures were used in this work,including,rubber cuttings,wood saw dust and barley reeds ash with(5%,10%,15%,20% ) percent of each one .
Concrete Blocks Made with Sawdust Replacement …
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...
(PDF) Uses of sawdust as admixture in …
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% ...
(PDF) SUITABILITY OF SAW DUST ASH-LIME MIXTURE FOR …
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.
Development of Six Inches Solid/Hollow Block Mould using Saw Dust …
Effect of type of curing on compressive strength, density etc. was carried out on the molded sawdust blocks. Blocks of 6 inches were considered under test. The results of the various tests: water content not exceeding 40%, the moisture content of the molded block, 26.58% and the optimum compressive strength of the block 4.5 N/m were ...
Saw Dust Ash as Partial Replacement for Cement in the …
This study investigates the use of Saw Dust Ash (SDA) as partial replacement for ordinary Portland cement (OPC) in sandcrete blocks. Some units of sandcrete hollow blocks were produced by partially replacing the cement content with 5% to 25% by weight of SDA, using vibrating block moulding machine. Sandcrete blocks without SDA serve as the control. The …
Compressive Strength and Bulk Density of Concrete …
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 ...
Utilization of sawdust ash as cement replacement for …
Hollow sawdust sandcrete blocks (lowcost & light-weight) Lagos, Nigeria ... Behavior of post-tensioned dry-stack interlocking masonry walls under out of plane loading. Constr. Build. Mater., 133 (2017), pp. 348-357, 10.1016/j.conbuildmat.2016.12.071. View PDF View article View in Scopus Google Scholar
Uses of sawdust as admixture in production of lowcost …
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
Uses of sawdust as admixture in production of lowcost and …
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 …
Some aspects of physical and mechanical properties of hollow blocks
The study investigated sawdust as a partial replacement for sand in production of hollow blocks with a view to reducing cost and converting waste to resource use.
Optimization of Composite Eco-Blocks Derived …
eco-blocks and conventional hollow blocks, sawdust eco-blocks have a significant difference in terms of durability. The blocks have 9.69% less moisture than the limit of 45%, indicating
Utilization of Sawdust in Making Concrete Blocks: An
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.
SUITABILITY OF SAW DUST ASH-LIME MIXTURE FOR …
Saw 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 ...
(PDF) Uses of sawdust as admixture in production of lowcost and light
The 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.
Saw Dust Ash as Partial Replacement for Cement in the …
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.
Coconut husk as hollow block
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.
Performance Evaluation of Hollow Concrete Blocks Made with Sawdust …
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 …
Performance Evaluation of Hollow Concrete Blocks …
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 …
Experimental Research of Saw Dust as Partial …
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 …
Effect of Rice Husk Ash and Saw Dust Ash Blend on the …
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 …
Performance of Saw-Dust in Low Cost Sandcrete Blocks
Synopsis: This paper presents the salient features of an experimental study on sandcrete blocks prepared by partially replacing sand with saw dust. Influence on compressive strength, water absorption capacity and density characteristics are studied by varying replacement percentage of sand with sawdust. Saw dust, the Industrial waste obtained from sawdust refuse dump form …
DEVELOPMENT OF SAWDUST CONCRETE FOR BLOCK MAKING …
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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