BS Part British Standard. Testing concrete. Part Methods for determination of air content of fresh concrete. 1. Scope. This Part of this. BS Part 2: Testing in accordance with this. Part of this standard will comply with ISO Together with Parts ,, and , this Part of BS. BS - Download as PDF File .pdf), Text File .txt) or read online. Part Methods for determination of air content of fresh concrete.
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BRITISH STANDARD BS Reprinted, incorporating. Amendments No. 1 and No. 2. Testing concrete. Part Methods for determination of. BS Part 1 to BS Part BS Part BS Part using manual or automatic control. C Load pacer. BS Parts 1 to BS Part BS Part BS ; Part BS Part BS Part .
CS1: Section ASTM D BS Part Provides a screed which complies with BS as class BS - Part Both BS: and the report of concrete society Magazine of. Concrete Research, Vol.
Leakage Testing of Buildings - Ashghal ; 3. BS Part Sec.
Tel: — Fax: — e. Part 2: , thirteen types of concrete mixes are implemented in this The particle size distribution General Specification for Building Edition.
Two-part polysulphide-based sealants shall be to BS Method of sampling Testing shall be carried out by an independent and approved laboratory. BS Part Testing Concrete Concrete Engineering ; method given in BS : Part is only permitted for the slump test as no data are available at the present time for its use for other methods of test given in this standard. CS Vol 1 Rev 00 draft final - cedd.
Apparatus 3. The sides ofthe mould shall be manufacturedfrom ferrous metal having a hardness value of at least Brinell kg 10 mm ball when determined in accordance with BS : Part I. The mould shall includea A curing tank constructed from any material which is of adequate strength and will resist corrosion. BS Part Testing Concrete. Method for Method for determination of compressive strength of concrete BS part Of course the Christ Cassia fistula L.
Preferred Common Name. Indian laburnum; Other Scientific Names.
Bactyrilobium fistula L. It is one of the major underutilized by products from sawmilling operations. Generation of wood wastes in sawmill is an unavoidable 35 Civil and Environmental Research www. Thus, this research investigates the potential use of wood sawdust wastes to produce a low-cost and lightweight composite for construction and engineering purpose. Materials and Methods Materials used in this study are; ordinary Portland cement, aggregate fine of 4.
It was sun dried, sieved and then kept in waterproof bags. However, portable water that was free from organic materials and dirt was used. This was done to determine the optimum percentage that would give the most favorable result.
However, dry mix method was used for concrete constituent before the addition of water. The calculation for materials used in concreting is as shown below while; Table 1 shows the estimated quantity of sawdust introduced into the concrete cubes. Particle size distribution BS Slump Test BS Part Air Entrainment Test BS part ; Density Test vi.
Compressive strength 3. Results and Discussion Particle Size Distribution: The result of the particle size distributions of the sand used as fine aggregates is as shown in Figure 1 with particle larger than 0. Also, the coefficient of uniformity and coefficient of curvature of the sand used in this study was 1.
Aggregate Crushing Value: The aggregate crushing value on 20mm coarse aggregate used was determined using indirect tensile strength test. Table 1 show the weight of the three representative samples. Table 3. Workability of concrete was observed to be decreasing as the percentage sawdust replacement of sand in the mix increases.
Figure 2: Slump against Sawdust Fraction at 0.
Air Entrainment: The result of the Air entrained in the concrete cubes with different proportions of sawdust as replacement of sand at 0. Values of 3. The increase in the air entrainment of the fresh concrete can be attributed to the difficulties encounter to produce a uniform matrix as sawdust and sand varies in their physical properties.
Compressive Strength: The results of the compressive strength obtained are shown in Figure 4. At 21 days and 28 days, the compressive strength of the concrete cubes exhibited a trend different from those obtained at 7 and 14 days curing. At 21 days of curing the compressive strength of the concrete was found to increase from Also at 28 days of curing the compressive strength of the concrete at different percentage sawdust replacement decreased from The general reduction in the strength of the concrete can be linked to the fact that the cement which serves as the bonding agent could not react properly at 0.
When sawdust absorb water the lignocellulolistic components such as carbohydrate, lignin, cellulose decomposes into the cement bounding material. This component that decomposes affects the overall strength of the concrete. Also sawdust differs in it physical properties from sand and the way sand will easily mix with cement will be different from the way sawdust mix.
Hence these suggest that the properties of sawdust should be investigated before use in concrete and it should be treated before use in concrete so as to reduce the proportion of the cellulolistic content of the sawdust. Also alternative curing method should be sought for when sawdust is to be used in concrete.
Density: The result of the densities of the concrete cubes with sawdust as partial replacement of sand is as shown on Figure 6. The result showed that there was a decrease in the density of the cube with increasing sawdust replacement of sand in the concrete cubes when compared with each other see Figure 6. This variation could be attributed to the hygroscopic behavior of sawdust in concrete cubes. However, none of the cube densities exceeded the minimum densities specified for light weight concrete i.
Further research on the behavior of concrete with higher replacement of sand with sawdust under curing action of water is however suggested. Concluding Remark Concrete produced using sawdust as partial replacement of sand has influence on the properties of the concrete. However, use of sawdust as partial replacement of sand at 25 percent by weight gives the same strength requirement when sawdust was not used.
References Adewuyi A. P and Adegoke T. Journal of Applied Sciences Research, 4 12 , —