Higher compressive strength losses of 32.81, 28.23 and 32.59% were recorded at elevated temperatures of 200, 400 and 600°C for SDA-modified laterized concrete while lower strength losses of 8.58, 7.91 and 3.74% were recorded for conventional laterized concrete. However, strength gain of 15.9% was recorded at 25°C ambient temperature for

The effect of partial substitution of cement with an agricultural waste-DDCPA on the compressive strength of Laterized concrete (LATCON) was investi- gated. Results of the physical and chemical tests on DDCPA and Laterite revealed them to have satisfactory characteristic properties for concrete production.

Compressive Strength and Water-Cement Ratio The effect of W/C ratio on the compressive strength is shown in table 4. The plot of W/C and the compressive strength for both mixes (Fig. 2, 3 and 4) revealed a non linear increase in strength with W/C.

Interpreting the effects of genetic variants is key to understanding individual susceptibility to disease and designing personalized therapeutic approaches. Modern experimental technologies are enabling the generation of massive compendia of human genome sequence data and associated molecular and phenotypic traits, together with genome-scale ...

Nov 08, 2018· Figure 3 7 d ay s compressive strength (a) and normalized compressive streng th (b) of laterized conc rete with unprocessed laterite. 28 days of curing for 25, 50, 75 and laterized concrete ...

Concrete is widely used in the construction of infrastructures and also, its compressive strength determines the function under the application of load. This research investigated the effect of curing media on compressive strength of microbial laterized concrete. 216 numbers of microbial laterized concrete cubes (150x150x150mm)

This study investigates the effect of aggregate size on the compressive strength of concrete. Two nominal mixes, that is, 1:2:4 and 1:3:6 were used in the study. Concrete cubes were produced with 6, 10, 12.5, 20 and 25 mm aggregates for the two nominal mixes and they were subjected to compressive strength test after curing for 7, 21, 28 and 56 ...

Abdoullah, Namdar and Fadzil, Mat Yahaya and Kok, Jun Jie and Lim, Yeng Ping (2014) An Investigation on Effect of Oil Palm Shell Ash on Flexural Strength and Compressive Strength of Cement Mortar. Advanced Materials Research, 894. …

500 Uniaxial compressive strength (tsf) 1000 FIGURE 1.7 Rock classification based on uniaxial compressive strength as given by various investigators: consistency (Jennings, 1972), degree of composition (Jaeger, 1972), and [E, D, and strength (, 1969); C from Table 1.19].

Compressive Strength Applied Stress 1Department of Building Obafemi Awolowo University Ile-Ife Nigeria E-mail: [email protected] The Effects of Applied Stress on the Modulus of Elasticity and Modulus of Deformability of Laterized Concrete O Ata O and DA Adea¹ Surveying and Built Environment Vol 18 (1), 27-34 June 2007 ISSN 1816-9554

The effect of partial substitution of cement with an agricultural waste-DDCPA on the compressive strength of Laterized concrete (LATCON) was investigated. Results of the physical and chemical tests on DDCPA and Laterite revealed them to have satisfactory characteristic properties for concrete production.

Nov 28, 2019· Models for predicting compressive strength, split tensile strength and flexural strengths were developed based on several measures of the materials as obtained from the experimental stage. The input parameters for the model were contents of cement, ground granulated blast furnace slag (GGBS), rice husk ash (RHA), fine aggregates, coarse ...

Jun 12, 2013· EFFECT OF WATER-CEMENT RATIO ON THE STRENGH …. Aggregates which occupy 70-75% of the total volume of mass concrete … laterite by Lasisi et al (1990), waste Sancrete blocks by Kamang and Umoh (2005) and … and 1:3:6 (cement: quarry sand: crushed stone aggregate) ratios were used. » More detailed.

The G(F)(R) values are influenced rather mildly by the concrete compressive strength. For d(max) = 25 mm and normal concrete compressive strength, rougher crack surfaces are observed and higher G(F)(R) values are obtained, compared to those for d(max) = 6 mm. Symptoms of a possible snap-back instability were detected in the load-LPD diagram of ...

The relation between porosity, hydration degree and compressive strength of Portland cement pastes in the presence of aluminum chloride additive Hajar Ahmadi Moghadam, Ali Mirzaei, Zahra Abedi Dehghi Article 118884

Laterized concrete is defined as concrete in which laterite fines replace sand. A previous paper highlighted only the salient points of difference between laterized and normal concrete. The results reported in this paper are mainly on the effect of water content on the compressive strength of laterized concrete.

Joshua, Opeyemi Effect of Nitric Acid Concentration on the Compressive Strength of Laterized Concrete. Civil and Environmental Research, 2 (10). pp. 48-57. ISSN 2222-2863 Joshua, Opeyemi RECYCLING FINE SANDCRETE BLOCK WASTE (FSBW) AS FINE AGGREGATE IN THE PRODUCTION OF SANDCRETE BLOCK. IJRRAS, 15 (3). pp. 359-364.

The results showed that unlike normal concrete the residual compressive strength of laterized concrete increaed, by up to 50% of the nominal strength, with increasing temperature up to 200°C before falling to about 20% of the nominal strength at 800°C. The gain in strength depended on the sand content.

BibTeX @MISC{Udoeyo_effectof, author = {Felix F. Udoeyo and Robert Brooks and Christopher Utam and Philip Udo-inyang and Eno C. Ukpong}, title = {EFFECT OF NON-STANDARD CURING METHODS ON THE COMPRESSIVE STRENGTH OF LATERIZED CONCRETE}, year …

Jun 01, 2018· The effect of different parameters on the development of compressive strength of oil palm shell geopolymer concrete.. PubMed. Kupaei, Ramin Hosseini; Alengaram, U Johnson; Jumaat, Mohd Zamin. . This paper presents the experimental results of an on-going research project on geopolymer lightweight concrete using two locally available waste …

The effect of partial substitution of cement with an agricultural waste-DDCPA on the compressive strength of Laterized concrete (LATCON) was investigated. Results of the physical and chemical tests on DDCPA and Laterite revealed them to have satisfactory characteristic properties for concrete production.

Oct 18, 2019· The Effect of Water Content on the Compressive Strength of Laterized Concrete, Journal of Testing and Evaluation, 3(6), 1975, pp. 449-453. Falade, F., Influence of Water/Cement Ratios and Mix Proportions on Workability and Characteristic Strength of Concrete Containing Laterite Fine Aggregate, Building and Environment, 29(2), 1994, pp. 237 …

Fig. 3a Effect of fines on Compaction (from Yoder and Witczak, 1975) Fig. 3b Effect of fine content on triaxial strength of a gravel (maximum aggregate size is 25mm) (from Yoder and Witczak, 1975) M.D. Gidigasu / Towards Developing Paving Materials Acceptance Specications 16 Fig. 4 Effect on soaked CBR of the plasticity of the 20% passing No ...

strength of the cubes were measured at the end of the exposure periods.The results indicate that the compressive strength of the sawdust ash(SDA) blended ordinary Portland cement (OPC)laterized concrete decreased with increasing SDA content and increased with increasing curing age in water. The compressive strength of laterized concrete ...

ash, bagasse (sugar cane ash) in concrete [9-10]. Laterite as excavated construction waste is a potential substitute for sand to produce laterized concrete (LATCON). Studies have shown effects of laterite in strength and serviceability properties …

Concrete subjected to improper curing process would exhibit poor strength performance due to incomplete hydration process. This research investigate the effect of curing regime towards compressive strength of concrete containing Malaysian laterite aggregate (MLA) as partial coarse aggregate replacement. Concrete specimens produced using a range of laterite …

Nov 30, 2019· Concrete has been a major building material over the centuries due to its strength, durability and versatility. However, despite the numerous advantages of concrete, it is still plagued with several limitations in addition to its high use of raw materials. In order to improve the resilience of concrete mixtures, this study was carried out to investigate the effect of …

STRENGTH CHARACTERISTICS OF LATERIZED CONCRETE USING LIME – VOLCANIC ASH CEMENT Ogunbode, E. B.1 and Olawuyi, B. J.2 Email: [email protected] or [email protected] Department of Building, Federal University of Technology, Minna, Niger State, Nigeria.1&2 ABSTRACT Effect of calcium oxide on volcanic ash laterized concrete …

Effects of functional disruption of lateral pericentral cerebral cortex on primate swallowing. Brain Res, 1999 824, 140-145. [14] Narita N, Yamamura K, Yao D, Martin RE, Masuda Y, Sessle BJ. Effects on mastication of reversible bilateral inactivation of the lateral pericentral cortex in the monkey (Macaca fascicularis). Arch.

Nov 29, 2013· is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of 's ...

[7] D. Adepegba, "The effect of water content on the compressive strength of laterized concrete," Journal of Testing and Evaluation, 3(6): 449-453, 1975b. [8] D. Adepegba, "Structural strength of short, axially loaded columns of reinforced laterized concrete," Journal of Testing and Evaluation, 5(2): 134-140, 1977a.

Nov 02, 2015· Abdulahhi M 2013 Effects of aggregate type on compressive strength of concrete Int. J. of Civil and Structural Engin. 2 791-800 [3] Aginam C H, Chidolue C A and Nwakire C 2013 Investigating the effects of coarse aggregates types on the compressive strength of concrete Int. J. of Engineering Research and Applications 3 1140-44

Feb 20, 2015· Studies found that the use of 20 to 30% of laterite aggregates, as partial replacement for coarse aggregates, results in concrete with the targeted strength. However, the effect of laterite aggregate content on the durability performance of this concrete is unknown. As such, the acid resistance and water absorption of concrete consisting of ...