Pemanfaatan Bekas Adukan Mortar pada Pratikum Batu (Masonry) untuk Paving Block

Stone Construction Laboratory is one of the existing courses in the Department of Civil Engineering Polytechnic State of Padang. Students are required to practice firsthand the theories about stone construction that have been studied. Stone work or often called masonry is wall or brick installation work for floor, wall, or fence. In practicum stone, the material used is artificial stone like brick and can also natural stone by using an adhesive substance usually known by the name of spesi or mortar.Mortar or spesi is one of the building materials that serves to glue the pairs of bricks, brick, stucco and so on. Mortars consist of sand, cement and water. In a stone work practicum where the work is not permanent (unloading pairs) then the cement material is replaced by lime which is a temporary binder. So far, the rest of the mortar use for the stone practicum is just thrown away because it cannot be used anymore, therefore it takes alternative utilization of the former mortar, for that the author tries to research by using it to make paving blocks. Paving blocks or concrete bricks for floors are a component of building material made from a mixture of hydraulic cement or the like, aggregates and water with or without other additives which do not reduce the quality of the paving blockThe study used comparison between paving block with mixed composition of mortar, cement and water mixture and paving block with standard mixture composition ie cement, sand and water. Paving is made by pressing using hydraulic press machine with a compressive strength of 25 kg and compressive strength testing with Universal Testing Machine.Based on the results of the research, it was found that the paving block from the utilization of mortar has a compressive strength higher than the standard paving block. At the age of 14 days, the compressive strength of the paving block from the utilization of mortar used has a compressive strength of 76.14 kg

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PENGARUH PENAMBAHAN SERAT ECENG GONDOK PADA KUAT TEKAN PAVING BLOCK K-200

UKaRsT ◽

10.30737/ukarst.v3i1.349 ◽

2019 ◽

Vol 3 (1) ◽

pp. 21

Author(s):

Muttaqin Fauzin Istighfarin ◽

Rasio Hepiyanto

Keyword(s):

Compressive Strength ◽

Water Hyacinth ◽

Building Materials ◽

Rigid Pavement ◽

Cast Concrete ◽

Additional Water ◽

Materials Used ◽

Relationship Of ◽

Water Hyacinth Fiber

Abstract Paving block is one of the products of building materials used as the top layer of the street structure, compared to other pavements like cast concrete and asphalt, paving block has been widely chosen especially to the streets used to traversed by low-speeed vehicles. This study aims to know and analyze how strong the influence of additional water hyacinth fiber to the compressive strength of K-200 paving block. Method used in this study is experimental method, with the comparison of mix design reffering to the comparison of concrete quality mixture K-200 (SNI 7394-2008). The result is K-200 paving block decreases its compressive strength after given the mixture of water hyacinth fiber. The precentage of the lowest decrease is in the 0,2 mixture of 55,69% and the highest decrease is in the mixture of 0,8 with the decline presentage of of 82,39%. The score of compressive strength for each test object is: Normal of 209,53 kg/cm², 2% of 92,86 kg/cm², 4% of 84,53 kg/cm², 6% of 58,33 kg/cm², and 8% of 36,90 kg/cm². The relationship of non-linear regression can be seen in R² = 1 on polinomial orde 4. Paving block with with code objects test “Normal” classified as in the quality of paving block B with compressive strength of 209,53 kg/cm² (17,03 Mpa), while for paving block with extra water hyacinth fiber, it is below the compressive strength standard according to SNI 03-0691-1996. Keywords: Rigid Pavement, Paving Block, Water Hyacinth, Compressive Strength.

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Limbah Bata Ringan untuk Bahan Campuran Agregat Halus Terhadap Kuat Tekan Pada Beton K-250

Jurnal Teknik ◽

10.37031/jt.v19i1.159 ◽

2021 ◽

Vol 19 (1) ◽

pp. 23-31

Author(s):

Sigit Agung Priyono ◽

Hammam Rofiqi Agustapraja

Keyword(s):

Compressive Strength ◽

Research Method ◽

Added Value ◽

Fine Aggregate ◽

Surrounding Area ◽

Mixed Composition ◽

Aggregate Concrete ◽

Pile Up

Light brick waste is fragments or pieces of scrap leftover during the installation of lightweight bricks which are often allowed to pile up and becoming garbage in the surrounding area. The waste is difficult to recycle and has a very low selling value. This study aims to assess the compressive strength of mixed composition concrete specimens using lightweight brick waste on the quality of K-250 concrete aged 7 days as a mixture of fine aggregate concrete so that it becomes a product that has better-added value for the community. The research method used in this research is SNI for concrete based on data from literature and the test was carried out in the UNISLA laboratory. The results showed that the use of a 0% mixture of lightweight brick waste resulted in compressive strength of 21.78 Mpa, 3% mixture yielded compressive strength of 18.87 Mpa, 5% mixture yielded compressive strength of 24.39 Mpa, and 7% mixture yielded compressive strength of 26.00 Mpa.

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RESEARCH OF THE POSSIBILITY OF INCREASING THE QUALITY OF PREPARATION OF DRY MIXTURES IN A HORIZONTAL VANE MIXER

Bulletin of Belgorod State Technological University named after V G Shukhov ◽

10.34031/2071-7318-2021-6-10-99-108 ◽

2021 ◽

Vol 6 (10) ◽

pp. 99-108

Author(s):

S. Khanin ◽

N. Kikin ◽

O. Mordovskaya

Keyword(s):

Compressive Strength ◽

Building Materials ◽

Experimental Studies ◽

Ultimate Compressive Strength ◽

Regression Equations ◽

Technological Parameters ◽

Sand Mixture ◽

Paddle Mixer ◽

Mixed Material

Paddle mixers with horizontal shafts are common at building materials enterprises for the preparation of concretes, mortars, dry mortars. A new design of a horizontal paddle mixer with rod elements located in front of the working surfaces of the blades, changing the trajectories of material particles, increasing their mobility, which leads to an increase in the degree of homogeneity of the mixed material, is considered. The aim of the study was to assess the influence of rod elements on the quality of preparation of a cement-sand mixture, to establish patterns of influence on it by the design and technological parameters of a two-shaft paddle mixer and to determine the areas of their rational values. The following tasks have been solved. A bench installation of a two-shaft horizontal paddle mixer with rod elements has been developed, on which experimental studies have been carried out on the preparation of dry cement-sand mixtures. For the criterion characterizing the quality of the mixture, the ultimate compressive strength of the prism specimens made from it is adopted. Regression equations are obtained that adequately describe the compressive strength of prism samples from the design and technological parameters of the mixer: the angle of the blades, the distance from the working surfaces of the blades to the rod elements, the rotational speed of the blade shafts, and their analysis is performed. The analysis of the change in the ultimate compressive strength of the prism specimens from the parameters under study is carried out, the rational ranges of their values are determined. It was found that a mixer with rod elements allows to obtain a dry cement-sand mixture, products from which have a higher compressive strength. During the work, the method of mathematical planning of experiments was used. As a result of the study, an assessment of the influence of rod elements on the quality of preparation of a cement-sand mixture was carried out, the regularities of the influence on it of the design and technological parameters of a two-shaft paddle mixer and the area of their rational values were established.

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PEMANFAATAN LIMBAH GENTENG BETON PADA PAVING BLOCK

Construction and Material Journal ◽

10.32722/cmj.v1i1.1327 ◽

2019 ◽

Vol 1 (1) ◽

pp. 36-45

Author(s):

Pratikto Pratikto ◽

Ginanjar A

Keyword(s):

Compressive Strength ◽

Building Material ◽

Surface Hardening ◽

Building Materials ◽

Coarse Aggregate ◽

Road Surface ◽

High Rise ◽

Waste Concrete ◽

Constituent Material

Paving block merupakan bahan bangunan yang digunakan sebagai pekerasan permukaan jalan, baik jalan untuk keperluan parkir kendaraan ataupun jalan raya, ataupun untuk keperluan dekoratif pada pembuatan taman. Bahan penyusun paving block adalah semen, pasir dan air dengan atau tanpa bahan tambah lainnya. Bahan tambah yang digunakan dapat berupa limbah atau sisa bahan bangunan yang tidak terpakai. Penggunaan limbah bertujuan untuk mendapatkan mutu paving block sesuai standard dan memanfaatkan limbah secara optimal. Limbah genteng beton banyak ditemukan di sekitar bangunan bertingkat yang sudah lama dan khususnya kampus Politeknik Negeri Jakarta.Limbah ini dapat digunakan sebagai bahan pembentuk paving block sebagai substitusi agregat kasar. Dalam penelitian ini digunakan perbandingan semen dan pasir adalah 1 : 3 dengan presentase limbah genteng beton sebesar 0%, 10%, 20%, 30%, dan 40%. Nilai fas yang digunakan adalah 0,35. Hasil pengujian nilai kuat tekan yang ditinjau pada hari ke 7 pada presentase 0% sebesar 52,59 Mpa, presentase 10% sebesar 44,949 Mpa, presentase 20% sebesar 40,942 Mpa, presentase 30% sebesar 40,685 Mpa dikategorikan mutu A, sedangkan presentase 40% sebesar 26 MPa dikategorikan mutu B.Kata kunci: paving block, Limbah genteng beton, agregat kasar Paving block is a material that is used as a road surface hardening, either for vehicle parking , highways, or for decorative purposes in gardening. The constituent material of paving blocks are cement, sand and water with or without other added material. The added material used can be in the form of waste or residual unused building materials. The use of waste building material of concrete tile aims to get the quality of paving blocks according to standards and utilize waste optimally. Waste concrete roof tiles can be found around many high-rise building constructions and especially Jakarta State Polytechnic campus.This waste can be used as a paving block as a rough aggregate substitute. In this study the ratio of cement and sand was 1: 3 with a percentage of concrete tile waste of 0%, 10%, 20%, 30%, and 40%. The fas value used is 0.35. The testing results of compressive strength which is reviewed on day 7 at a percentage of 0% of 52.59 MPa, 10% of 44.949 MPa, 20% of 40.942 MPa, 30% of 40.658 MPa are categorized as grade A, while at a percentage of 40% the compressive strength is 26 MPa which is categorized as grade B.Keywords: paving block , waste concrete tile, coarse aggregate

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Pengaruh Cangkang Kerang Laut Terhadap Kuat Tekan Beton

Sultra Civil Engineering Journal ◽

10.54297/sciej.v2i1.167 ◽

2021 ◽

Vol 2 (1) ◽

pp. 46-54

Author(s):

Neti Rahmawati ◽

Irwan Lakawa ◽

Sulaiman Sulaiman

Keyword(s):

Mechanical Properties ◽

Compressive Strength ◽

Building Materials ◽

Coarse Aggregate ◽

Fine Aggregate ◽

Fine Aggregates ◽

Concrete Quality ◽

Compressive Strength Of Concrete ◽

Physical Construction

Concrete is one of the most widely used building materials today interms of physical construction. Concrete is made from a mixture offine, coarse aggregate, cement, and water with a certain ratio, aswell as materials that are usually added to the concrete mixtureduring or during mixing, to changing the properties of concrete tomake it more suitable in certain jobs and more economical, can alsobe added with certain other mixed materials as needed if deemednecessary. Seashells can be used to mix concrete. This study aims todetermine whether the addition of shells aggregate shells in aconcrete mixture can affect the mechanical properties of concrete.The specimens used are in the form of cubes with a size of 15cm x 15cm x 15 cm, consisting of additional concrete coarse and fineaggregate with shell substitution percentage of 0%, 15%, 20% with atotal sample of 45, with the planned concrete quality of K225. Theuse of sea shells in increasing the compressive strength of concrete isbetter used as fine aggregate than coarse aggregate. The use of seashells as a substitute for fine aggregates achieves maximum resultsat 20% composition.

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THE EFFECT OF VOLUME VARIATION OF SILVER NANOPARTICLE SOLUTION TOWARDS THE POROSITY AND COMPRESSIVE STRENGTH OF MORTAR

Jurnal Sains Dasar ◽

10.21831/jsd.v5i1.12673 ◽

2016 ◽

Vol 5 (2) ◽

pp. 140

Author(s):

W.S.B. Dwandaru ◽

H.S.A Tina ◽

A. Andreyani

Keyword(s):

Compressive Strength ◽

Silver Nanoparticle ◽

Building Materials ◽

Testing Machine ◽

X Ray Diffraction ◽

X Ray ◽

Universal Testing Machine ◽

Volume Variation ◽

Universal Testing ◽

The World

As the world is growing rapidly, people need better building materials such as mortar. The aim of this research is to determine the effect of adding silver nanoparticle solution towards the porosity and compressive strength of mortar. This research was started by making silver nanoparticle solution from nitrate silver (AgNO3). The solution is then characterized using Uv-Vis spectrophotometer. 5 mM silver nanoparticle is added in the process of mortar production with volume variation of the silver nanoparticle solution. The porosity, compressive strength, and the content of mortar were determined by digital scale, universal testing machine, and X-ray diffraction, respectively. For silver nanoparticle solution volumes of (in mL) 0, 5, 10, 15, 20, and 25 the porosity obtained are (in %) 20.38, 19.48, 19.42, 18.9, 17.8, and 17.5, respectively. The best increase in compressive strength is obtained for (in MPa) 29,068, 29,308, and 31,385, with nanoparticle solution volumes of (in mL) 5, 10, and 15 Keywords: mortar, silver nanoparticle, compressive strength

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PEMANFAATAN ABU LIMBAH KERTAS PADA PEMBUATAN BATU BATA

Jurnal Ilmu Lingkungan ◽

10.31258/jil.15.1.p.109-120 ◽

2021 ◽

Vol 15 (1) ◽

pp. 109

Author(s):

Herix Sonata ◽

Dewi Yudiana Shinta ◽

Mulyadi Mulyadi

Keyword(s):

Compressive Strength ◽

Building Materials ◽

Raw Materials ◽

Poor Quality ◽

Class Iii ◽

Paper Waste ◽

Wall Construction ◽

Home Industries ◽

Average Compressive Strength

The increasing number of population each year makes the number of building needs for houses, buildings, schools, offices and other infrastructure will increase. In general, building consumption cannot be separated from the use of bricks as a form of wall construction in building construction. The size and compressive strength of bricks circulating in the market are of poor quality which comes from fabrication, local work or home industries. In the brick-making process, bricklayers only use certain types of soil to maintain the quality of brick production. As a result, the availability of soil as the main material in brick making will decrease. Another alternative to meet the shortcomings of the brick-forming material and make it stronger and more durable, can be used as a substitute for other materials such as waste paper. The use of paper waste is an effort to find new types of building materials and to reduce environmental pollution problems due to paper waste. This study aims to analyze the concentration of the addition of paper waste ash on the strength of the bricks. The benefit of this research is as an alternative study of meeting the needs of brick raw materials for environmentally friendly buildings by utilizing paper waste ash. The results showed the effect of a mixture of paper waste ash as a clay additive on the compressive strength of normal bricks (fc '2.9 MPa). The percentage value of compressive strength with a mixture of paper waste ash 3% obtained an average compressive strength of 40.10 kg / cm2, 5% mixture variation obtained an average compressive strength of 61.48 kg / cm2 and 7% mixture variation obtained an average compressive strength average 64.12 kg / cm2 against the compressive strength of normal bricks 37.28 kg / cm2. The conclusion of this research is that the variation of the mixture of paper waste ash with a variation of 7% paper waste ash mixture exceeding 60 kg / cm² (compressive strength class III) SNI 15-2094-2000a. This shows that paper waste ash can increase the compressive strength of bricks.

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Substitution Local Resources Basalt Stone Scoria Lampung, Indonesia, as a Third Raw Material Aggregate to Increase The Quality of Portland Composite Cement (PCC)

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.11252 ◽

2018 ◽

Vol 7 (2.14) ◽

pp. 484

Author(s):

Rajiman . ◽

Sofia W Alisjahbana ◽

Hery Riyanto ◽

Cholil Hasyim ◽

Muhammad Ikhsan Setiawan ◽

...

Keyword(s):

Compressive Strength ◽

Cost Estimation ◽

Raw Material ◽

Cement Production ◽

Composite Cement ◽

Local Resources ◽

Hydraulic Cement ◽

Compressive Strength Test ◽

The Cost

Domestic cement demand is increasing in line with the increase of development of property sector and construction sector. Cement is one of the important components in making a permanent building. The function of cement in a construction is as an adhesive material that affects the strength of a building. The process of making cement is divided into two groups, namely hydraulic cement and non-hydraulic cement. Hydraulic cement consists of Portland type cement and PCC type cement, PPC cement and slag cement. The type of PCC cement (Portland Composite Cement) is produced from grinding clinker with gypsum with the addition of third raw material. The purpose of this research is to know the effect of cement quality improvement with substitution of basalt scoria stone raw material as much as 0-10% as the third raw material. The source of basalt scoria stone originated from Lampung Timur, Indonesia. The fineness test showed cement fineness was 2983-3665 cm2/gr with minimum SNI standard 2800 cm2/gr. Residue test meets the requirements of SNI standard that is equal to 16,07% -18,55%. The compressive strength test was performed at ages 3, 7 and 28 days and obtained the result that the optimum compressive strength produced was 235, 314, 394 kg/cm2. Basalt rock usage as substitution material in cement production can decrease environmental pollution caused by clinker production. Based on the cost estimation analysis, the use of basalt stone can decrease the production cost which impact on the increase of profit

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THE EFFECT OF ADDITIVE WITH FOAM AGENT AND COCONUT SHELL ON LIGHTWEIGHT CONCRETE

Neutron ◽

10.29138/neutron.v19i1.79 ◽

2019 ◽

Vol 19 (1) ◽

pp. 72-79

Author(s):

Fikki Efendi ◽

Fredy Kurniawan ◽

Diah Ayu Restuti Wulandari

Keyword(s):

Compressive Strength ◽

Building Materials ◽

Lightweight Concrete ◽

Economic Status ◽

Coconut Shell ◽

Coarse Aggregates ◽

Shell Waste ◽

Coconut Shells ◽

Selection Of

Concrete houses have a higher social and economic status. This study provides another consideration for the selection of building materials (Wonorahardjo, 2008). There are several ways that can be used to make concrete lighter, including using lightweight aggregates, substituting coarse aggregates with foam agents, adding coconut shells and additives where coconut shell waste has not been used optimally. In this research, a lightweight concrete mixture made from additives 5M additive, foam agent and coconut shell using 3 kg cement composition. While the 5M additives variation of 3%, 5%, 10%, 15% of cement, 15 milliliters of foam agent and coconut shell of 1%, with consideration of the specimens for 28 days not soaked non-curing. The test specimen is made with a size of 15x30 cm. This study is to determine the weight, compressive strength of the lightweight concrete produced. The results of research on the use of additional 5M additives, foam agents and coconut shells cause concrete to be lighter and compressive strength decreases. The weight of light concrete at 28 days not soaked is 775 kg / cm3, while the quality of concrete is 22 kg / cm2.

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UJI KUAT TEKAN DAYA SERAP AIR DAN MASSA JENIS BATU BATA MERAH BERBAHAN TAMBAHAN ABU KULIT DAN JANGGEL JAGUNG DI WULUHAN JEMBER

JURNAL PEMBELAJARAN FISIKA ◽

10.19184/jpf.v10i2.24675 ◽

2021 ◽

Vol 10 (2) ◽

pp. 41

Author(s):

Mei Sofiatul Hasanah ◽

Yushardi Yushardi ◽

Albertus Djoko Lesmono

Keyword(s):

Compressive Strength ◽

Water Absorption ◽

Building Materials ◽

Construction Materials ◽

Base Material ◽

Absorption Measurement ◽

Building Construction ◽

Corn Cob ◽

Quality Construction

The increase in Indonesia's development activities increases people's consumption of more quality construction materials and is easy to reach in terms of price. Building materials with good quality can improve the quality of building construction. The increasing need of the community for building materials triggered the development of the brick-making industry. Redbrick is an element of building used in building construction made from clay base material with or without other mixed materials. This research is a type of experimental research. The purpose of this study is to know and analyze the composition of the addition of corn bark ash and ash corn cob appropriately to produce the quality of bricks with high compressive strength, low water absorption, and large density. Additional materials in this study in the form of corn bark ash and ash corn cob. The quality of red bricks is seen from three aspects, namely compressive strength, water absorption, and density. The largest compressive strength was obtained in the addition of ash corn cob by 2.5% by 37.2 Kg/Cm2 and the compressive strength of 49.5 Kg/Cm2 on the addition of corn skin ash by 2.5%. Water absorption measurement of all types of red bricks the results of the study showed all the results of water absorption is not eligible sni. The highest density was obtained from a mixture of 2.5% ash corn cob material of 17.5 gr/Cm3. the best composition to produce bricks with strong compressive value and high density and have low water absorption is 2.5% addition of ash corn cob and the addition of 2.5% corn skin ash. Keywords: Red bricks, strong press, water absorption, density.

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