scholarly journals Laboratory Study of Water Absorption of Modified Mortar

2011 ◽  
Vol 2 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Borhan M.M. ◽  
Mohamed Sutan N.
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Polyvinyl Acetate ◽  
Final Analysis ◽  
Absorption Capacity ◽  
Strength Test ◽  
Water Absorption Capacity ◽  
Test Results ◽  
Compressive Strength Test ◽  
Water Absorption Test

This study investigates the effects of polymer additives namely polyvinyl acetate (PVAc) on water absorption and compressive strength of mortar. Twelve mortar mixtures were investigated for water absorption test and compressive strength test. Results showed that water absorption were inversely proportional to the percentage of PVAc addition. Final analysis showed that addition of PVAc had significant effects on water absorption. Samples with 1%, 3% and 5% addition of PVAc showed an increase of water absorption capacity in comparison to control mortar.

Comparative Study between ABNT/NBR 15270/2005 and a New Hollow Ceramic Block for Non-Load-Bearing Masonry Manufactured in Santarém - Pará (Brazil)

2019 ◽  
Vol 958 ◽  
pp. 35-40
Author(s):  
Fernanda C.M. Esmanhotto ◽  
Matheus C. Mota ◽  
Hugo R.A.S. da Silva ◽  
Victor H.P. Moutinho ◽  
Alexandre Zaccaron ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Strength Test ◽  
Ceramic Product ◽  
Load Bearing ◽  
Ceramic Block ◽  
Compressive Strength Test ◽  
Ceramic Blocks ◽  
Water Absorption Test ◽  
Technical Properties

The study aims to evaluate the technical properties of the application of filler element for slab as a hollow ceramic blocks for non-load-bearing masonry. This ceramic product has dimensions of approximately 6.5x25x81.5 cm, and because it presents different geometries of the conventional ceramic block and characteristics different from those required by the norm, this product was submitted to the norms of non-load-bearing masonry and being carried out tests of geometry, water absorption and compressive strength, besides the visual characteristics according to the standard ABNT NBR 15270/2005. Thirteen samples were used for the geometry and compressive strength test, and six for the water absorption test. Some samples presented a great deviation from the square, besides not being within the established limits of the planes and septa. The water absorption is within the established limits and compressive strength is lower than that required by the standard.

scholarly journals Assessment of the effect of ice-phobic impregnation composition of cement-concrete poads on the adhesive resistance of ice crust to concrete

2021 ◽  
Vol 79 (1) ◽  
pp. 246-254
Author(s):  
R.E. Lukpanov ◽  
◽  
D.S. Dyusembinov ◽  
D.V. Tsygulev ◽  
D.O. Bazarbaev ◽  
...  
Keyword(s):  
Water Absorption ◽  
Absorption Capacity ◽  
Water Soluble ◽  
Water Absorption Capacity ◽  
Absorption Test ◽  
Test Results ◽  
Cement Concrete ◽  
Water Soluble Polymer ◽  
Significant Difference ◽  
Water Absorption Test

An ice-phobic impregnation composition of cement-concrete roads has been proposed. The composition is based on keratin-containing components with the addition of a water-soluble polymer. The evaluation criterion was the study of the adhesion resistance of ice crust to concrete. The test results showed the effectiveness of the ice-phobic coating since in all experiments the uncoated samples showed greater resistance of the ice crust to thermal influences. The water absorption test results showed a significant difference in the water absorption capacity of the uncoated specimens compared to the coated specimens.

scholarly journals Pozzolanic and mechanical properties of Date Palm Seed Ash (Dpsa) concrete

2020 ◽  
Vol 39 (3) ◽  
pp. 680-686
Author(s):  
A.S.J. Smith ◽  
G. Xu ◽  
M.J. Garba ◽  
M.Y. Aliyu
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Water Absorption ◽  
Date Palm ◽  
Activity Index ◽  
Strength Test ◽  
Partial Replacement ◽  
Test Results ◽  
Setting Times ◽  
Compressive Strength Test

This paper presents the findings of a research work conducted on how to improve the mechanical properties of concrete using Date Palm Seed Ash (DPSA) as partial replacement of cement. The DPSA used was obtained by controlled burning of date palm seed in a kiln at a maximum temperature of 630oC for eight hours and air cooled afterwards. The ash obtained was sieved through 75μm sieve and its oxide composition analysed using X-ray fluorescence (XRF) procedures. DoE method of mix design was used to produce concrete ingredients for grade 30N/mm2 giving a water-cement ratio of 0.53. The effect of partial replacement of cement with DPSA on cement paste and concrete using 0, 2.5, 5, 7.5, 10, 15 and 20% DPSA was investigated through consistency and setting times tests, workability test, compressive strength test (at 7, 21, 28 and 56 days curing duration), pozzolanic activity index evaluation and water absorption test. Results show that DPSA has high silicon dioxide (45.50%), aluminum oxide (20.75%) and Iron oxide (7.25%). Findings indicate that the consistency and setting times of cement-DPSA paste increased with increase in the replacement of cement with DPSA. The workability of DPSA concrete decreased with increase in cement replacement. Compressive strength test results show that cement can be replaced with DPSA up to 10% as the compressive strength at 10% replacement is 31.5N/mm2 as against the 31N/mm2 of the normal concrete, at 56 days. The pozzolanic activity index result also show that DPSA concrete meets up the minimum requirement of 75% specified by ASTM C618-15. Also, the water absorption capacity of DPSA concrete at the highest replacement (20%) is 11% less than that at 0%. Keywords: Cement, Compressive strength, Concrete, Date palm seed ash, Partial replacement, Pozzolana

scholarly journals Pengaruh Penggunaan Material Daur Ulang Terhadap Sifat Mekanik Beton Non Pasir

2020 ◽  
Vol 9 (1) ◽  
pp. 11-19
Author(s):  
Tommy Iduwin ◽  
Dicki Dian Purnama ◽  
Pratiwi Septyaning Putri ◽  
Hastanto Siswo Martono
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Strength Test ◽  
Environmental Damage ◽  
Infrastructure Development ◽  
Test Results ◽  
Alternative Materials ◽  
Compressive Strength Test ◽  
Concrete Materials ◽  
Recycled Material

Infrastructure development is increasing every year making the need for concrete materials increases. Using alternative materials can reduce the scarcity of material and environmental damage caused by taking and dredging the material. This research is to find out how much influence the recycled material has on the compressive strength of no fines concrete. The variations used are recycled materials of 0%, 25%, 50%, 75% and 100%. Mechanical testing conducted is a compressive strength test to determine the compressive strength of no fines concrete at the age of 7, 14 and 28 days. The ratio of cement and aggregate used is 1: 4 with FAS 0.5. This research uses 15 x 30 cm cylindrical molds with 45 test specimens. The test results show the highest compressive strength value of non-sand concrete occurs at 0% recycled material by 10.47 Mpa and the lowest compressive strength on non-sand concrete 100% recycled material is 8.39 Mpa. The percentage of absorption of no fines concrete shows that the more recycled material is used, the smaller the value of water absorption. The highest absorption value in no fines concrete is 0% recycled material, which is 5.93% and the smallest value is in the variation of no fines concrete 100% recycled material recycled material that is equal to 4.99%.

scholarly journals Modifikasi Beton Fc 9,8 Mpa Menggunakan Abu Ampas Kopi

2020 ◽  
Vol 3 (2) ◽  
pp. 234
Author(s):  
Shirfi Wimaya ◽  
Ahmad Ridwan ◽  
Sigit Winarto
Keyword(s):  
Compressive Strength ◽  
Construction Material ◽  
Absorption Capacity ◽  
Strength Test ◽  
Building Structures ◽  
Test Results ◽  
Slump Test ◽  
Average Value ◽  
Coffee Grounds ◽  
Compressive Strength Test

Concrete is a construction material that is widely used in building structures. Cement is the main constituent of concrete whose needs are increasing. The expansion of coffee shops in Kediri City resulted in an increase in the volume of coffee grounds waste, which can be used as an alternative to cement. The purpose of this study was to determine the value of the slump test, compressive strength test, and test the absorption capacity of the addition of coffee grounds ash to the concrete sample specimen using a cylinder is measuring 15cm x 30cm with 5 pieces of concrete quality K-125 or equivalent to fc '9.8 Mpa. Slump test results with a percentage of 4%, 8%, 12%, namely 2.5 cm, 0.5 cm and 2.5 cm. The results of the concrete compressive strength test with a percentage of 4% obtained the results of the compressive strength fc '10.51 Mpa or equivalent to K125, a percentage of 8% produces a compressive strength of fc' 8.39 and a percentage of 12% produces a compressive strength fc '7.56 Mpa equivalent to K100. The water absorption test results for 28 days resulted in an average value of 0.32 kg, 0.25 kg, 0.15 kg, and 33 kg.Beton merupakan salah satu bahan konstruksi yang banyak digunakan pada struktur bangunan. Semen merupakan penyusun utama beton yang kebutuhannya semakin meningkat. Perluasan kedai kopi di Kota Kediri mengakibatkan peningkatan volume limbah ampas kopi yang dapat digunakan sebagai alternatif pengganti semen. Tujuan penelitian ini adalah untuk mengetahui nilai uji slump, uji kuat tekan, dan uji daya serap penambahan abu ampas kopi pada benda uji beton dengan menggunakan silinder berukuran 15cm x 30cm dengan kualitas beton sebanyak 5 buah. K-125 atau setara dengan fc '9.8 Mpa. Hasil uji slump dengan persentase 4%, 8%, 12% yaitu 2.5 cm, 0.5 cm dan 2.5 cm. Hasil uji kuat tekan beton dengan persentase 4% didapatkan hasil kuat tekan fc '10 .51 Mpa atau setara dengan K125 persentase 8% menghasilkan kuat tekan fc '8,39 dan persentase 12% menghasilkan kekuatan tekan fc '7,56 Mpa setara dengan K100. Hasil pengujian daya serap air selama 28 hari menghasilkan nilai rata-rata 0,32 kg, 0,25 kg, 0,15 kg, dan 33 kg.

scholarly journals ANALISIS KUAT TEKAN BATU BATA DENGAN ONGGOK SEBAGAI BAHAN PENGGANTI SEKAM PADI

Teknika ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 12
Author(s):  
Ngudi Hari Crista ◽  
Agus Muldiyanto
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Rice Husk ◽  
Manufacturing Process ◽  
Strength Test ◽  
Absorption Test ◽  
Small Water ◽  
Compressive Strength Test ◽  
Water Absorption Test ◽  
Behavior Test

<em>The most widely used material as a house wall is red brick, which is relatively cheap and safe to weather compared to other materials. Red bricks are usually in the manufacturing process by traditional means and fabrication. In general red bricks require additional materials of rice husk in the process of making. Much of the "starchy" waste material widely found in Klaten that is not currently utilized, is expected to be used instead of rice husk which is one of the red brick material mixtures.This research will be conducted brick test with mechanical behavior test which includes density test, water absorption test and compressive strength test with red brick made from rice husk mixture as comparison with analysis result of mixture of starch onggok waste. The result of this research is compressive strength of brick with mixture of rice husk larger and has a small water absorption compared with compressive strength of brick with mixture of onggok.</em>

scholarly journals The Effects of Using Ceramic Waste Powder and Palm Fiber on Mortar properties

2020 ◽  
Author(s):  
AL-AZHAR ZAHIR MOHAMMED AL-RUQAISHI ◽  
Omar R. Khaleel
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Ceramic Powder ◽  
Strength Test ◽  
Palm Fiber ◽  
Ceramic Waste ◽  
Compressive Strength Test ◽  
The World ◽  
Water Absorption Test ◽  
Percentage Of Water Absorption

There are multiple industries that generate ceramic in the world. The ceramic waste ends as a landfill; and there is no it’s recycle. Moreover, palm fibers can be used for various purposes such as it can be mixed with mortar in order to minimize cracks. The objective of this study was to investigate the effects of using ceramic waste powder and palm fiber on properties of mortar. OPC is partially replaced with ceramic waste powder with different percentages such as 10%, 20%, and 30% and palm fiber is added with 10% of replacement only at 0.5%, 1% and 1.5% of the weight of cement. The specimens are compared with the reference mix in the water absorption test under 105co for 24/h and compressive strength test after 7 and 14 days. The results showed that the optimum percentage of cement replacement with ceramic powder was 10%. Regarding the fiber, the percentage of water absorption got increased while increasing the fiber. The compressive strength of mortar with fiber was obtained more than the normal. More percentage of fiber led to more strength of mortar.   

scholarly journals Analysis of The Rock Fracture on Uniaxial Compressive Strength Test

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Edward Dinoy ◽  
Yohanes Gilbert Tampaty ◽  
Imelda Srilestari Mabuat ◽  
Joseph Alexon Sutiray Dwene
Keyword(s):  
Compressive Strength ◽  
Uniaxial Compressive Strength ◽  
Poisson Ratio ◽  
Rock Fracture ◽  
Strength Test ◽  
Maximum Pressure ◽  
Test Results ◽  
Average Value ◽  
Compressive Strength Test ◽  
Uniaxial Compressive Strength Test

The compressive strength test is one of the technical properties or compressive strength tests that are commonly used in rock mechanics to determine the collapse point or the elasticity of rock against maximum pressure. The rock collapse point is a measure of the strength of the rock itself when the rock is no longer able to maintain its elastic properties. The purpose of this test is to find out how long the rock maintains its strength or elasticity properties when pressure is applied, and to find out the difference between the strength of compact rock and rock that has fractures when pressure is applied. Rocks that have fractures will break more easily or quickly when pressure is applied compared to compact rocks. This analysis is carried out by comparing the rock strength of each sample, both those that have fractures and compact rocks. To find out these differences, laboratory testing was carried out. The test results show the value (compressive strength test 57.76 MPa), (elastic modulus 5250.000MPa), (Poisson ratio 0.05) and the average value of rock mechanical properties test (axial 0.91), (lateral-0.279), and (volumetric 0.252) . Based on the test results above, it shows that rocks that have fractures will break more easily when pressure is applied, compared to compact rocks that have a long time in the uniaxial compressive strength test.

scholarly journals Effect of fine recycled aggregates on the properties of non-cement blended materials

2020 ◽  
Vol 323 ◽  
pp. 01018
Author(s):  
Wei-Ting Lin ◽  
Lukáš Fiala ◽  
An Cheng ◽  
Michaela Petříková
Keyword(s):  
Compressive Strength ◽  
Blast Furnace Slag ◽  
Interface Structure ◽  
Strength Test ◽  
Recycled Aggregates ◽  
Test Results ◽  
Granulated Blast Furnace Slag ◽  
Fine Aggregates ◽  
Compressive Strength Test ◽  
Furnace Slag

In this study, the different proportions of co-fired fly ash and ground granulated blast-furnace slag were used to fully replace the cement as non-cement blended materials in a fixed water-cement ratio. The recycled fine aggregates were replaced with natural fine aggregates as 10%, 20%, 30%, 40% and 50%. The flowability, compressive strength, water absorption and scanning electron microscope observations were used as the engineered indices by adding different proportions of recycled fine aggregates. The test results indicated that the fluidity cannot be measured normally due to the increase in the proportion of recycled fine aggregates due to its higher absorbability. In the compressive strength test, the compressive strength decreased accordingly as the recycled fine aggregates increased due to the interface structure and the performance of recycled aggregates. The fine aggregates and other blended materials had poor cementation properties, resulting in a tendency for their compressive strength to decrease. However, the compressive strength can be controlled above 35 MPa of the green non-cement blended materials containing 20% recycled aggregates.

scholarly journals OPTIMUM PERFORMANCE OF STABILIZED EDE LATERITE AS AN ALTERNATIVE CONSTRUCTION MATERIAL

2020 ◽  
Vol 3 (8) ◽  
pp. 1-8
Author(s):  
Adegbenle Bukunmi O
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Construction Material ◽  
High Water ◽  
Good Alternative ◽  
Linear Shrinkage ◽  
Absorption Capacity ◽  
Water Absorption Capacity ◽  
Optimum Performance ◽  
High Water Absorption

Laterite samples from Ede area with particle components of 19.7% clay, 32.8% silt and 47.5% sand was stabilized with combined cement, lime and bitumen and test for Compressive strength, Linear Shrinkage, Permeability and Water Absorption. The stabilizers were mixed with laterite soil in different ratios and percentage. The laterite carried 90% which is constant while the three stabilizers shared the remaining 10% in varying form. After 28 days of curing, laterite stabilizer with 90% of laterite, 8% of cement, 1% lime and 1% bitumen (LCLB1) possessed compressive strength of 2.01N/mm2. It Water Absorption Capacity was 3.05%. LCLB4 stabilizer (90% laterite, 6% cement, 2% lime and 2% bitumen) has the same compressive strength with LCLB1 stabilizer but with a high Water Absorption Capacity of 4.2%. The stabilizer of 90% laterite, 3.33% cement, 3.33% lime and 3.33% of bitumen (LCLB8) has the lowest compressive strength of 0.74N/mm2 and the highest Water Absorption Capacity of 5.39%. The results shows that LCLB1 stabilizer is a better stabilizer for strength and blocks made from laterite stabilized with it stand a good alternative to sand Crete blocks in building constructions. The combination of these stabilizers in order to determine a most economical volume combination for optimum performance is highly possible and economical.

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