Compressive Strength Of Sandcrete Blocks
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(PDF) 74 COMPRESSIVE STRENGTH OF MARKETED SANDCRETE
The compressive strength of the Sandcrete blocks is below standard recommended by the Nigerian Industrial Standards (NIS) 87:2000. The compressive strength of individual blocks ranges from 0.12N
[PDF] Compressive Strength of Sandcrete Blocks in Bosso
Nevertheless, the compressive strength of the sandcrete blocks themselves was below the standard recommended by Nigerian Industrial Standard (NIS) 87: 2000. The compressive strength of individual blocks was between 0.11 N/mm 2 and 0.75 N/mm 2,and the average compressive strength of the blocks were between 0.14 N/mm 2 and 0.66 N/mm 2 .
Compressive Strength and Costs of Sandcrete Blocks and
b. Compressive Strength Test this guides to determine the compressive strength of both the sandcrete and quarry dust blocks respectively. The results obtained from these tests together with the conceptual theory formed the basis upon which conclusion
INVESTIGATION OF THE COMPRESSIVE STRENGTH OF
All the information available sandcrete block industries has be ignored for their own benefit. 1.3 AIM AND OBJECTIVES This study is aimed at investigating the compressive strength of commercial produced sandcrete block in Eket, Akwa Ibom State and also verify if it meets the recommended standard as stated in NIS 87: 2000.
Compressive Strength of Manual and Machine Compacted
The average compressive strength of the sandcrete blocks produced mechanically with same brand of cement at age 7, 14, 21 and 28 days ranged between 2.23N/mm 2 to 2.96N/mm 2.The average compressive strength of sandcrete blocks produced manually with the Elephant brand of cement at age 7, 14, 21 and 28 days of production ranges between 2.61N/mm 2 to 2.89N/mm 2.
Enhancing the strength of sandcrete blocks using coarse
compressive strength of sandcrete block by limiting cement content and adding other constituents. The findings of these researches are presented in Table 1 below. The researchers explored whether sawdust ash and other substitutes have great potential to perform as a Pozzolanic material, and concluded that the use of the
(PDF) Properties of Sandcrete Block Produced with Coconut
In addition, the wet and dry compressive strength of these sandcrete blocks made from these sands were established. A total of 1,080 block samples produced under very controlled conditions were
A study on the engineering properties of sandcrete blocks
Key words: Sandcrete blocks, rice husk ash, compressive strength, hygrothermal properties, thermal properties. INTRODUCTION Hollow sandcrete blocks containing a mixture of sand, cement and water are used extensively in many countries of the world especially in Africa. In many parts of Nigeria,
Compressive Strength of Concrete & Concrete Cubes What
Dec 08, 2017· Compressive strength as per American Codes. In case of American codes, compression strength is defined in terms of cylinder strength fc’. Here compressive strength of concrete at 28 days curing is obtained from a standard cylindrical specimen 150mm diameter and 300mm high loaded longitudinally to failure under uniaxial compression loading.
Compressive Strength of Commercially Produced Sandcrete
The compressive strength of sandcrete blocks is highly dependent on the cement sand mix ratio, physical characteristics (specific gravity, moisture content, etc.) of the sand used, size and shape of the block, curing method, mode of production (hand or
[PDF] Compressive Strength of Sandcrete Blocks in Bosso
Nevertheless, the compressive strength of the sandcrete blocks themselves was below the standard recommended by Nigerian Industrial Standard (NIS) 87: 2000. The compressive strength of individual blocks was between 0.11 N/mm 2 and 0.75 N/mm 2,and the average compressive strength of the blocks were between 0.14 N/mm 2 and 0.66 N/mm 2 .
Optimum Compressive Strength of Hardened Sandcrete
Having seen and understood the compressive strength profiles for the sandcrete blocks and cubes samples with steel chips obtained during the first phase investigation, it became very important to ascertain the range or likely value of the steel chips for optimum compressive strengths for the blocks
COMPARATIVE ANALYSIS OF THE COMPRESSIVE STRENGTH
compressive strength of hollow sandcrete blocks. Series arrangement of the cavities is common but parallel arrangement has been recommended. This research performed a comparative analysis of the compressive strength of cavities of different configurations. The test thin plate distributes the load on the block and the hollow block is
Establishing The Compressive Strength of Sandcrete Blocks
Establishing The Compressive Strength of Sandcrete Blocks Produced In The Central Region, Ghana.
International Journal of Scientific & Engineering Research
Also, the compressive strength of the cubes increases with increase in the saturated surface dry density as shown in fig. 2. From table 3, the compressive cube strength ranges from 3.49N/mm² to 7.11N/mm², which are higher than the minimum compressive strength of sandcrete block by NIS 87:2007 ranging from 2.5N/mm² to 3.45N/mm².
Enhancing the strength of sandcrete blocks using coarse
compressive strength of sandcrete block by limiting cement content and adding other constituents. The findings of these researches are presented in Table 1 below. The researchers explored whether sawdust ash and other substitutes have great potential to perform as a Pozzolanic material, and concluded that the use of the
A study on the engineering properties of sandcrete blocks
Key words: Sandcrete blocks, rice husk ash, compressive strength, hygrothermal properties, thermal properties. INTRODUCTION Hollow sandcrete blocks containing a mixture of sand, cement and water are used extensively in many countries of the world especially in Africa. In many parts of Nigeria,
Evaluation of the Quality of Hand Moulded Sandcrete Block
sandcrete blocks which results to poor quality sandcrete block. The effect of this blocks when exposed to persistent flooding, a highly porous block could absorb water, consequently become weakened and eventually fail. 4.2 Compressive strength of block Table 2 shows the result values of the compressive strengths of the selected sandcrete
Properties of Concrete Blocks — Strength
In the use of concrete blocks for the walls of buildings, the stress to which they are subjected is almost entirely one of compression. In compressive strength wellmade concrete does not differ greatly from ordinary building stone. It is difficult to find reliable records of tests of sand and gravel concrete, 1 to 4 and 1 to 5, such as is used in making blocks; the following figures show
The effects of production methods on the compressive
the compressive strength of the blocks was determined on the 7th, 14th, 21st, 28th days respectively. The study revealed that compaction has greater effect on the compressive strength of sandcrete blocks in the sense that blocks produced using vibrating machine has the highest compressive strength amongst the three methods.
Impact of Vibration Time on Compressive Strength of
of the sandcrete blocks. As a way forward, this paper concentrates on the application of vibration time in sandcrete block production to enhance durability and compressive strength through compaction. To achieve this, the following objectives are to be established in this paper: 1.
Compressive Strength of Commercially Produced Sandcrete
The compressive strength of sandcrete blocks is highly dependent on the cement sand mix ratio, physical characteristics (specific gravity, moisture content, etc.) of the sand used, size and shape of the block, curing method, mode of production (hand or
Characterization of the Compressive Strength of Sandcrete
Research activities in different countries have shown that the compressive strengths of sandcrete blocks are always far below the recommended values in the codes. This work reports the compressive strengths and the statistical characteristics of sandcrete blocks collected from twenty five (25) different block industries in Ondo State, Nigeria.
Determination of Compressive Strength of Sandcrete Block
Also, the compressive strength of the cubes increases with increase in the saturated surface dry density as shown in tabl 2. from the same table 2; the compressive cube strength ranges from 4.98N/mm² to 11.6N/mm² which is higher than the minimum compressive strength of sandcrete block by NIS 87:2007 ranging from 2.5N/mm² to 3.45N/mm²
COMPARISON OF STRENGTH OF SANDCRETE BLOCKS
compressive strength of manually produced blocks and machine compacted blocks at 28th days of curing were 2.83N/MM2 and 2.96NMM2 respectively. Previous research has shown dismal results in the production of sandcrete blocks, which have exhibited compressive strength far below the standard requirement for the construction of houses
The effects of production methods on the compressive
the compressive strength of the blocks was determined on the 7th, 14th, 21st, 28th days respectively. The study revealed that compaction has greater effect on the compressive strength of sandcrete blocks in the sense that blocks produced using vibrating machine has the highest compressive strength amongst the three methods.
STANDARDIZATION OF SANDCRETE BLOCK’S STRENGTH
4.14 compaction of the specimen sandcrete blocks and cubes 43 4.15 curing 43 4.16 the compressive strength testing of sandcrete block and sandcrete cubes on
A study on the engineering properties of sandcrete blocks
Key words: Sandcrete blocks, rice husk ash, compressive strength, hygrothermal properties, thermal properties. INTRODUCTION Hollow sandcrete blocks containing a mixture of sand, cement and water are used extensively in many countries of the world especially in Africa. In many parts of Nigeria,
Evaluation of the Quality of Hand Moulded Sandcrete Block
sandcrete blocks which results to poor quality sandcrete block. The effect of this blocks when exposed to persistent flooding, a highly porous block could absorb water, consequently become weakened and eventually fail. 4.2 Compressive strength of block Table 2 shows the result values of the compressive strengths of the selected sandcrete
Physicomechanical behaviour of sandcrete block masonry
Apr 14, 2009· The compressive strength of sandcrete blocks increased with longer wet curing durations for all of the mixes tested, as expected. A water–cement ratio (w/c) of 0.5 . The strength at ages 7, 14 and 21 days constituted, respectively, 43, 75 and 92 per cent of the 28day strength, which were practically the same for the prototype and model
Properties of Concrete Blocks — Strength
In the use of concrete blocks for the walls of buildings, the stress to which they are subjected is almost entirely one of compression. In compressive strength wellmade concrete does not differ greatly from ordinary building stone. It is difficult to find reliable records of tests of sand and gravel concrete, 1 to 4 and 1 to 5, such as is used in making blocks; the following figures show
Assessment of Properties of Sandcrete Blocks Produced by
Keywords—Sandcrete blocks, compressive strength, aggregates, curing. I. INTRODUCTION Sandcrete blocks are products of fine aggregate, Portland cement and water in a prescribed mix ratio proportions. The strength of sandcrete blocks depend upon two major factors, namely: mix proportion and method of curing (Aiyewalehimi and Tanimola, 2013).
Compressive Strength of Sandcrete Blocks in Bosso and
The result for the compressive strength of blocks is shown in Tables 2,3,4,5 and 6.Test rest indicate that the compressive strength of individual sandcrete blocks ranges between 0.11 N/mm2 to 0.75 N/mm2. The average compressive strength of the five blocks ranges between 0.14 N/mm2 to 0.66 N/mm2. These values fall below the standard prescribed for
Quality Of Sandcrete Hollow Blocks In Plateau State
The final compressive strength of sandcrete hollow block can be as high as 3.5N/mm2, but 3.45N/mm2 is the BS recommended compressive strength. Thus, the research will find out whether the strength of the blocks produced in the state are not up to standard. 1.4 Aim and Objectives This research work is aimed at assessing the quality of sandcrete
Effects of Curing on the Compressive Strengths of
This study considered the effects of curing on the compressive strength property of 150mm thick sandcrete blocks produced by commercial block industries in Calabar SouthEastern Nigeria. Commercial sandcrete blocks were randomly selected from ten (10) block moulding sites and cured in the Concrete and Materials Laboratory of the Cross River
Determination of Compressive Strength of Sandcrete Block
Also, the compressive strength of the cubes increases with increase in the saturated surface dry density as shown in tabl 2. from the same table 2; the compressive cube strength ranges from 4.98N/mm² to 11.6N/mm² which is higher than the minimum compressive strength of sandcrete block by NIS 87:2007 ranging from 2.5N/mm² to 3.45N/mm²
Characterization of the Compressive Strength of Sandcrete
Research activities in different countries have shown that the compressive strengths of sandcrete blocks are always far below the recommended values in the codes. This work reports the compressive strengths and the statistical characteristics of sandcrete blocks collected from twenty five (25) different block industries in Ondo State, Nigeria.
COMPARISON OF STRENGTH OF SANDCRETE BLOCKS
compressive strength of manually produced blocks and machine compacted blocks at 28th days of curing were 2.83N/MM2 and 2.96NMM2 respectively. Previous research has shown dismal results in the production of sandcrete blocks, which have exhibited compressive strength far below the standard requirement for the construction of houses
Compressive Strength of Sandcrete Blocks in Bosso and
The result for the compressive strength of blocks is shown in Tables 2,3,4,5 and 6.Test rest indicate that the compressive strength of individual sandcrete blocks ranges between 0.11 N/mm2 to 0.75 N/mm2. The average compressive strength of the five blocks ranges between 0.14 N/mm2 to 0.66 N/mm2. These values fall below the standard prescribed for
Assessment of Sandcrete Blocks Manufacturers ‘Compliance
in compressive strength between 28 days and 60days. (Afolayan, Arum and Daramola (2008) opined that quality management practiced has direct effect on the strength of sandcrete blocks. (Abdullahi 2005) is of opinion that best procurement of materials and proper curing process enhance good quality of sandcrete blocks.
Assessment of Properties of Sandcrete Blocks Produced by
Keywords—Sandcrete blocks, compressive strength, aggregates, curing. I. INTRODUCTION Sandcrete blocks are products of fine aggregate, Portland cement and water in a prescribed mix ratio proportions. The strength of sandcrete blocks depend upon two major factors, namely: mix proportion and method of curing (Aiyewalehimi and Tanimola, 2013).
STANDARDIZATION OF SANDCRETE BLOCK’S STRENGTH
4.14 compaction of the specimen sandcrete blocks and cubes 43 4.15 curing 43 4.16 the compressive strength testing of sandcrete block and sandcrete cubes on
Physicomechanical behaviour of sandcrete block masonry
Apr 14, 2009· The compressive strength of sandcrete blocks increased with longer wet curing durations for all of the mixes tested, as expected. A water–cement ratio (w/c) of 0.5 . The strength at ages 7, 14 and 21 days constituted, respectively, 43, 75 and 92 per cent of the 28day strength, which were practically the same for the prototype and model
Properties of Sandcrete Block Produced with Coconut Husk
Investigating the effect of eggshell ash on the properties of sandcrete block. International Journal of Civil Engineering, Construction and Estate Management, 5(3), 43 54. Akinpelu, A.T. & Adekanmbi, J. (2017). Comparing compressive strength of sandcrete blocks made with sand from different sources.
Properties of Concrete Blocks — Strength
In the use of concrete blocks for the walls of buildings, the stress to which they are subjected is almost entirely one of compression. In compressive strength wellmade concrete does not differ greatly from ordinary building stone. It is difficult to find reliable records of tests of sand and gravel concrete, 1 to 4 and 1 to 5, such as is used in making blocks; the following figures show
Compressive Strength of Manual and Machine Compacted
This research investigated and compared the strength of manual with machine compacted sandcrete hollow blocks using Dangote and Elephant (Ordinary Portland) cement brands in Nigeria. Thirty two (32) samples were moulded from the two brands of cement i.e. sixteen (16) from each cement brand for both manual and machine compaction methods and were cured for 7, 14, 21, and 28days respectively.
Analysis Of Sandcrete Blocks Production By Using Different
of sandcrete blocks, was ascertained. Also; the possible effect of chemical compositions on the compressive strength, was also considered. The study also covers a comparison of the compressive strengths of sandcrete block produced from different samples and sources with reference to the standard value approved by NIS and other Civil Engineering
Strength Properties of Commercially Produced
compressive Strength. The sandcrete block samples were labeled and weighed individually in dry condition. The weight of the crushing machine used was 50kg capacity with 500g graduations. The length, breadth and height of the labeled blocks were taken and the volume calculated.
Effect of Admixtures on the Compressive Strength of
Results showed that sawdust did not significantly enhance the compressive strength of sandcrete blocks. The results on the use of sugar showed that that sugar had a significant effect on the compressive strength of the blocks increasing it by 17% at 28 days. Both admixtures slowed down the setting and early stiffening of the mortar mix.