Page 2 ... replacement in lightweight concrete in terms of compressive strength, slump ... Results indicate that by using PKS for aggregate replacement, it ... In accordance to BS EN 197-1 2000 [6], OPC Type 1 was used in this research. .... Figure 1. Comparison of compressive strength (MPa) at 7, 14, and 28 days of curing.

Chat Onlinereplacement of fine aggregate is prepared for 1:2:4, 1:1.5:3 and 1:1:2, for both ... The cube specimens were tested for compressive strength ... 7 Days compressive strength. M15. M20. M25. Type of. Concrete. Mix ratio ... The Results of this test are show in table .1. Fig. 3: 28 Days Compressive strength results. 6. Conclusion.

Chat Online2. , M.Saravanan. 3. 1 Assistant Professor, Department of Civil Engineering Bannari Amman Institute of ... are made in three different grades, namely: M15, M20 and M25. ... Index Terms: compressive strength, lateritic sand, lime stone filler and tensile strength .... The 7days compressive strength of conventional concrete,.

Chat OnlineGlass Fiber. Dr.G.Gowthamakumar 1, Dr.K.Nirmalkumar 2*, M.Karthick 3 ... parameters is compared w i t h standard M25 grade concrete. The addition of .... After curing process the specimens are taken for testing, for cubes compressive strength is tested. ... The results of the compressive strength after 7 days 14 days and 28...

Chat OnlineDec 4, 2014 ... Inadequate compaction of concrete results in large number of voids, ... Keywords – Fly Ash, Compressive Strength, and M25 & M30 mix .... 3. 2. -. -. -. Physical Requirements. 1. Specific surface(Blaine). M2/kg ... strength of corresponding plain cement mortar cubes. -. -. 6 ... In the dry collection system, after.

Chat Online1. , V. Lakshmi. 2. , S. Bhanu Pravallika. 3. 1. Research Scholar, Department of ... Two concrete mixes viz, M20 and M25 Grades using Ordinary Portland ... Portland cement concretes and hence result in improvement of its strength and .... water for a period of 7, 28 and 90 days before testing its compressive strength, split.

Chat OnlineJul 29, 2010 ... Civil Engineering - Concrete Cube Compressive Test What is the ... Showing Answers 1 - 9 of 9 Answers ... so M25 for 7 days load/area=so load should be above 16 n/mm2 = 67% Strength .... by using the formula, V = (L x W x H)/2 + (π r2)/3 where L = Length. ... What is the output of the following program?

Chat OnlineThe minimum 28 day compressive strength of concrete cubes of 15 cm size, ... 2 for pre-tensioned concrete and 30 N/mm2 for post-tensioned concrete. ... After 24 hours these moulds are removed and test specimens are put in water for curing. ... Age 1 day 3 days 7 days 14 days 28 days Strength per cent 16% 40% 65%...

Chat OnlineIs the ratio 1:3:6 for m10 grade concrete by volume or by weight? ... For example , If you adopt M25 grade for concrete cube then after 28 days of the cube ... mix is 1 : 1.5 : 3 which should have a compressive strength of 20 N/mm^2 or more. ... that concrete gets 33% of its strength after 7 days of curing,90% after 14 days of...

Chat OnlineQuantity of concrete in the work, m^{3}, Number of samples. 1 – 5, 1. 6 – 15, 2. 16 – 30, 3 ... Additional specimens may be required for 7 days strength. In all the cases 28 days ... Table 2 : Characteristic compressive strength compliance requirement ... From test results the foundation concrete found to be of M25 grade. The work.....

Test results. 1. Normal Consistency. 28%. 2. Fineness of cement (%). 6. 3. Specific Gravity. 3.148. 4. Initial setting time. 70mins. Final setting time. 300mins. 5. Compressive strength of cement at. 7days .... To calculate the compressive strength of concrete cubes ... testing machine after 7 days curing, 14 days curing, 28 days.

Chat OnlineTo determine the compressive strength of concrete specimens prepared and to ... These specimens are tested by compression testing machine after 7 days curing or ... Age. Strength per cent. 1 day. 16%. 3 days. 40%. 7 days. 65%. 14 days. 90% ... compressive strength (N/mm^{2}) at 28 days. M15. 10. 15. M20. 13.5. 20. M25.

Aug 1, 2008 ... strength of concrete cubes is generally tested at the end of 3 days, 7 days ... Lastly, in section 6, we discuss about the conclusions inferred from ... the quantity Sm = Σ ( xi – µ0 ) where i = 1, 2,…m against the sample number m. ... compressive strength samples of various grades (M15, M20, M25, M30, M40 …)...

Chat Onlineconcrete was tested for 7 days and 28 days strength after casting ... Tensile Strength i.e., Split Tensile Strength, Compressive ... The specimens used for the tests included cubes, cylinders ... tabulated in tables 2 and 3 and the variations are shown in figs 1 to 6. M25. Replacement ... V. INTERPRETATION OF TEST RESULTS.

Chat Online1. Name of the structure were the cubes will be taken 2. Nos of sets 3. Date of casting 4. Time of casting 5. Grade of concrete 6. 7 days result 7. 28 days result

Chat OnlineCompressive Strength of Concrete is an important element in designing. R.C.C Structure ... 2.33 → Not more 1% of the results falls below characteristic value...

Chat OnlineVolume: 3 Issue: 6. 4241 – ... concrete and compare with plane concrete having grade M20 & M25. The compressive strength of compressed concrete compare for 7 day & 28th days. ... This test will be done for conducted for concrete cubes of ... II. Results for Compressive Strength Test in Bar Chart. Chart no. 1. Chart no. 2....

Chat OnlineJan 9, 2016 ... Concrete Cubes. Rohit Jain. 1. , K.K. Pathak. 1. ,Rajesh Bhargava. 2. 1. National ... Oxygen permeability test was performed after 56 days of .... 3. Special mix 2 i.e. water + cement + fine aggregate + coarse .... in Figure 5, 6 and 7 respectively. ... The Compressive strength test results for M15, M20 and M25.

Chat OnlineCompressive strength of standard cube specimens (150 mm) at early and later- .... Easily disperses in concrete results ... NCA (0.8%,1% &1.2% by weight of cement) was added . ... Specimens were dried in open air after 28 days of curing and subjected to ... Table 5 and 6 shows compressive strength for M20 & M25 grade.

Chat Online7days, 28days, 56days of Curing Period and Durability Characteristics such as Acid ... higher compressive strength for all grade of concrete M35, M30, M25 Grade of ... Property. Test results. 1. Specific gravity. 3.12. 2. Fineness of cement. 6%. 3 .... gm. Average weight of cube after immersion in gm weight loss in %. 30 days.

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