of the fine aggregate, the production method adopted, the curing method and the curing period, as well as the size and type (solid or hollow) of the blocks (Akpokodje and Uguru, 2019). In Nigeria, sandcrete blocks are commercially produced in makeshift structures both in the rural and urban areas and without adequate attention

To solve this problem, Nigerian Industrial Standard (NIS 87:2007) which is a standard reference document for manufacturing of sandcrete blocks in Nigeria; specifies the minimum characteristics compressive strength of sandcrete blocks as 2.5N/mm2 and 3.45N/mm2 for non-load bearing and load bearing walls respectively [3, 4, 6, 7].

production of sandcrete blocks (NIS, 2000). Cement normally serves as the bonding agent, while sand particles provide the skeleton or particles to be bonded. The bonding action is due to the hydration of cement. The use of sandcrete hollow blocks in building construction, as a walling unit in Nigeria, and in

the provision of the Nigeria Industrial Standard. 2. MATERIALS AND METHOD: The following materials were used in the production of sandcrete blocks: 2.1 Cement Cement is a construction material used in bonding with stones, bricks and sand [8]. The principal constituents of cement are compounds of lime. When water is added

The main aim of this research is to evaluate how sandcrete blocks and bricks are produced for use in Nigeria, the laws and regulations guiding their production and …

The adoption of Interlocking Stabilised Soil blocks (ISSBs) has been challenged by its competing building material, sandcrete blocks. Sandcrete blocks is said to be generally acceptable due to its ...

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 …

This paper assesses the compliance level of Sandcrete Block Manufacturers to Minimum Standard Requirement in Southwest, Nigeria. 54 sandcrete blocks comprising 225 mm …

This research entails the assessment of sandcrete blocks quality produced in Kano municipal Local govt. Kano state of Nigeria. six sandcrete blocks were selected from eight commercial block industries from the study area, the result obtained shows that the aggregates used satisfied the overall grading requirement specified in BS 882, …

Sandcrete Blocks are made by mixing sharpsand and cement in the right proportion along with water. This must be done by a reputable moulder in order to ensure the blocks are of the required strength. Ratio is 1:4 ( 4 wheelbarrows of Sharp sand to be mixed with 1 bag of Cement). You're also going to add water depending on the moisture …

2. The compressive strength of sandcrete blocks increases at elevated temperatures, indicating that elevated temperature up to 200 °C can enhance the compressive strength of sandcrete block. 3. The addition of micronized laterite up to 20 % in the cement-sand matrix produces sandcrete blocks of lighter weight.

The granite formation for production of dimension stone blocks at Utan was investigated in three different locations A, B and C in a view to examine the physical properties of Utan granite using saturation and Buoyancy technique; evaluate some of its mechanical properties; determine its rate of emission of radioactive elements with Geiger Muller …

sandcrete blocks. These requirements include the quality of materials, the methods and procedure to employ for production and testing of the final products to ensure …

Ota, Nigeria. Abstract Sandcrete blocks comprise of natural sand, water and binder. Cement, as a binder, is the most expensive input in to the production of sandcrete blocks. This has necessitated producers of sandcrete blocks to produce blocks with low OPC content that will be affordable to people and with much gain.

The first standard for sandcrete block in Nigeria was developed in 2000 and known as NIS 87:2000; Standard for sandcrete blocks. In 2004, the document was reviewed and NIS …

Sandcrete block commonly used in Nigeria is defined in the Federal Building Code (2006) as a homogeneous mixture of composite material made up of cement, sharp sand and water (Anosike and Oyebade ...

compressive strengths for the control are 2.8 and 3.5 N/mm2, which are within the standard values of 2.5 N/mm2 and 3.45 N/mm2 in the Nigeria Industrial Standard (NIS 87, 2000), while 40 to 60 % sand to sawdust mixture showed 0.8 and 1.1 N/mm2, respectively, which is far below the specified standard, making it suitable for

This paper assesses the compliance level of Sandcrete Block Manufacturers to Minimum Standard Requirement in Southwest, Nigeria. 54 sandcrete blocks …

For a long time in Nigeria, sandcrete blocks are manufacture in many parts of the country without any ... The Word 'Sandcrete has no standard definition; what most workers have done was to define it in a ... using the natural sand samples from the block production industries are as follows: 1. Grading by sieve analysis 2. Silt/clay content ...

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 ...

cement, sandcrete block is made of only fine aggregate (sand) mixed with cement. The sand and cement mixture is in the proportion of 6:1 (British Standards Institution, 1970). Specifications for moulding sandcrete blocks stipulate that the block is generally to be made in accordance with BS 2028. Sandcrete blocks are made in three sizes in Nigeria.

A normal mix of 1:8 with water cement ratio of 0.55% was used. Sixty sandcrete blocks of size 450 mm x 225 mm x 150 mm of varying fibre content of 0% (control), 0.5%, 1.0%, 1.5% and 2.0% by weight ...

The paper assesses the quality of hollow sandcrete blocks manufactured by block Industries in Osun, Oyo and Ekiti States the South Western part of Nigeria. Block samples were randomly collected from selected areas of the states Osogbo, Ilesha, Ibadan, Ogbomosho, Aramoko and Ado-Ekiti. Sandcrete blocks were produced using 1:6 based …

improving and raising the standard of our block industry in Nigeria for the overall benefit of the construction industry. This paper is therefore a research work on the production of …

Standard for Sandcrete blocks became the country's standard reference document for sandcrete block. The last review was done in 2007 from which NIS 87:2007; Standard …

(9") blocks was 0.94 N/mm2 these values fall below the standard prescribed for load bearing sandcrete blocks. The Nigerian industrial standard The Nigerian industrial standard specified that the lowest compressive strength of individual blocks shall not be below 2.5 N/mm 2 and average compressive strength of five blocks

The materials used in the production of sandcrete blocks in the study area are cement, sand and water. Interaction with the block moulding factories revealed that Burham protland cement of grade 42.5 was used for the production of sandcrete blocks. Hence its usage in the production of blocks using standard mix

CHAPTER ONE . Introduction 1.1 Background of Study One of the basic needs of man is housing. In many developing countries like Nigeria, there is a perpetual problem of accommodation and inadequate housing. A research showed that about seven million Nigerians have no accommodation . It is important to note that majority of housing units …

sandcrete block industries to the NIS standard in most cities in Nigeria. This paper presents an experimental survey of the compressive strength of sandcrete blocks …

The properties of hollow sandcrete blocks produced in Minna, Nigeria are presented. Sandcrete block is made of cement, water and sand binded together in certain mix …

87:2007; standard for sandcrete blocks emerged as the latest standard reference document for sandcrete block production in Nigeria. SANDCRETE BLOCK Block is a composition of usually (1:6) mix of cement and sharp sand with the barest minimum of water mixture, and in some cases admixture, moulded and dried naturally. NIS 87:2000 defines …

requirements by standard organisation of Nigeria in southwest, to examine the minimum standard requirements of fine aggregates and sandcrete blocks being used, and to ... the production of sandcrete block and this was batched by volume. International Journal of Applied Engineering Research ISSN 0973-4562 Volume 13, Number 6 (2018) pp. 4162 …

This paper assesses the compliance level of Sandcrete Block Manufacturers to Minimum Standard Requirement in Southwest, Nigeria. 54 sandcrete blocks comprising 225 mm and 150 mm were gotten from ...

so as to ensure good quality in the production of the sandcrete blocks. Keywords: Blocks, Building, Construction, Quality, Sandcrete, Standards, 45 Journal of Environmental Sciences and Resources Management Volume 9, Number 4, 2017 ... The first standard for sandcrete block in Nigeria was developed in 2000 and known as NIS 87:2000; ...

The first standard for sandcrete block in Nigeria was developed in 2000. It was reviewed in 2004 and the latest review was done in 2007 from which NIS 87:2007; Standard for sandcrete blocks emerged as the latest standard reference document for sandcrete block production in Nigeria (NIS, 2007).

This paper assesses the compliance level of Sandcrete Block Manufacturers to Minimum Standard Requirement in Southwest, Nigeria. 54 sandcrete blocks comprising 225 mm and 150 mm were gotten from blocks production sites within three states; Oyo, Ondo, and Lagos State. Samples of their fine aggregates were gotten for proper examination.