Cem Concr Compos. The ratio of calcium carbide residue to rice husk ash of 50:50 by weight obtains the highest compressive strength of mortar. However, more research and development especially on optimum mix design, setting times, early strength, and durability of concrete should be carried out. ,��� ��愓�a�zyy�y��������G58*��E��רI.Q׉���J�V�uI��� ��!� S���% Calcium carbide residue and rice husk ash consist mainly of Ca(OH)(2) and SiO2, respectively. Calcium carbide: Lots of water; low chain alcohols Not useful DO NOT DUMP ... Taken to hazardous waste disposal centers; Conversion to cinnabar Decomposes over 450 °C to yield sulfur oxides and mercury vapors DO NOT DUMP DO NOT DUMP Extremely toxic to the environment and all life US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Atterberg’s limits test, California bearing ratio (CBR) and unconfined compressive strength (UCS) It was found that the presence of cast-in-place concrete topping slab has significantly improved the behaviour of hollow-core units by increasing the flexural crack initiation and maximum load capacities as well as the stiffness. Consult the Right to Know Hazardous Substance Fact Sheet on ACETYLENE. In many areas, it’s legal to dispose of CaCl2 in the regular trash. the specimens were cured in water for 7, 14, 28 and 56 days. If this is the case where you live, put closed containers of CaCl2 inside a box lined with a plastic bag. The effects of different concentration of spent calcium carbide on the growth indexes (percentage germination, plant height, leaf area, number of leaves, and plant biomass) on okra (Abelmoschus esculentus) were studied at a screen house located beside the academic building of the Federal University Of Technology, Akure, Nigeria. Sell as much as you can. conducted on fresh and hardened concrete. The slump and compacting factor decreased as the SDA content increased indicating that concrete becomes less workable as the SDA content increased. The results have also demonstrated a general increase in both compressive and flexural strength of mortar prisms with ages. Carbide sludge (10.4-11.5 tonnes day(-1)) is generated from the reaction of calcium carbide (900 kg) and water (6,000 L) in the production of acetylene (2,400 m3), in three selected acetylene manufacturing plants. improve the overall performance of PC. Calcium carbide. There are many benefits of using Tape up the box and put it in your trash can. xԃ%�ꋞ�u�� �'-��PN�|���Ey��v�Xv��/��2��'�B[��d�O`�OW���7�W5=?���f[��V (��ߟ�N��=��,F{�AO�q�C䯉d�H� j��n���-n�U�����)S���r�-H�� �;+������C֏���+G�0�ϰ��1>��AwŲ��o힧�C�p~' ���G�jOLEHS��&���nI��[�~9`�=��[�: ��2�Z��_��ڡ��n��� ����l������� ;hp����hTb�c�j��N8��� �g�2ˤ������4I�a?�g���15�����#��B���xs��'m����`���-�M�-�QS��,�l����ukDu2��>Y.ݴ{����N:>�M��n=�~n��;Gh�Sl{^�٦�WG��mh-�7��;�tT�9�w��)�ʍ��d^U˗Ъ��7-� ���SD��n��q��{X ��]����Kz_��V�!�hvN��n%�ʋjp�X�{m�AD�)�E�!��'C�$�Db�r<8�K�)*�KoP�wA�=�4߫í�DBY���qG;}垂�Ç���%��~�Dx�&�3a�/nZ'[�qD?>���Ƅ���o��F�_��^��&�.�ǁ���z)�;~ӥ_j��)��3���ۏ�+����m��A�T;�mD��1R�hS��k���n��3�T�. All rights reserved. Also 5 % addition of CCW to PC mix, increased consistency but decreased the setting times, This project investigate the effects of FRP wrapping on the behaviour RC columns under eccentric load and to assess the influence of load eccentricity on the load carrying capacity of the FRP wrapp, Mortar is widely used in the construction industry for different purposes. Contact Total Waste Control Ltd for Phenolic resins and calcium carbide waste and waste disposal solutions including all types of hazardous and non hazardous waste. Cast-In-Place concrete was cast on top of the hollow-core units, Join ResearchGate to discover and stay up-to-date with the latest research from leading experts in, Access scientific knowledge from anywhere. Properties of concrete investigated were compressive and flexural strength at different ages, absorption by capillarity, resistivity and resistance to chloride ion penetration (CTH method) and accelerated carbonation. The main objective of this research work is to determine the compressive strength Section 13: Disposal Information Waste Disposal: Dispose of in accordance with local regulations Section 14: Transport Information DOT Classification: Class: 4.3: Substances hich in contact with water emit flam Identification: Calcium Carbide UN Number: 1402 PG: I Special Provisions for Transport: Not available. Call now to discuss your enquiry. Calcium carbide residue (CCR) is a waste by-product from acetylene gas production. The compressive strength of mortar could be as high as 15.6 MPa at curing age of 28 days and increased to 19.1 MPa at 180 days. Test for tensile and flexural strength was carried out after 28 days curing. Carbides such as Calcium carbide. According to the compressive strength of mortar, the mixture from calcium carbide residue-rice husk ash has a high potential to be used as a cementing material. CaO + 3 C → CaC2 + CO. In addition, the behavior of SCBA was compared to that of an insoluble material of the same packing density. selected from the two groups to form a composite system. The main component of CCR is Ca(OH)2, which can react with siliceous materials through pozzolanic reactions, resulting in a product similar to those obtained from the cement hydration process. For unsuitable or contaminated calcium carbide, disposal should be conducted in accordance with federal, state and local regulations. Thus, when calcium hydroxide mixes with water, it produces CLW. SECTION 14 – TRANSPORT INFORMATION BASIC SHIPPING DESCRIPTION: UN NUMBER: 1402 Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations (s ee section 13). Impure calcium carbide, such as technical grade type, also has other calcium compounds, like calcium sulfide, calcium nitride, calcium phosphide, which in contact with water it will also produce phosphine, ammonia or hydrogen sulfide. ABSTRACT:Calcium Carbide Waste (CCW) was used as an alternative to traditional Portland cement mineral filler in hot mix asphalt concrete to rid its disposal problem. Test results showed that in comparison to control OPC mix, the hydration products for the RCP mix took longer to formulate. compressive strength and splitting tensile strength were This experimental study was undertaken to investigate the effect of GGBFS on compressive strength of, The assessment of cement partially replaced with calcium carbide waste powder, CCWP and bamboo leaf ash, BLA on the strength of concrete made with cement was investigated. Detoxification of calcium carbide waste before disposal on soil might be the best option in management. In this blog post we look at the Speedy Carbide Test and how it helps in the identification of dampness in properties. Protimeter Speedy Reagent - Calcium Carbide This 500g tin of Calcium Reagent is for use with the Speed range of moisture measurement pressure vessels. investigated and at 0%RHA and 10%CCW the strength of Test results obtained for 10% cement replacement level in lightweight concrete indicate that although the addition of BBA conducted to lower performance in terms of the degradation indicative tests, RHA led to the enhancement of mechanical properties, especially early strength and also fast ageing related results, further contributing to sustainable construction with energy saver lightweight concrete. advancement in high performance PC using supplementary Calcium carbide Slag is from CaC2 hydrolysis reaction and will do harm to land and make pollution. It can be clearly seen from the figure that the workability of the, Variation of flexural strength with age for various percentage of CCW content, Variation of compressive strength with age for various percentage of CCW content, All figure content in this area was uploaded by Abdurra'uf Mukhtar Gora, All content in this area was uploaded by Abdurra'uf Mukhtar Gora on Dec 14, 2017, Scholars Journal of Engineering and Technology (SJET), ©Scholars Academic and Scientific Publisher, (An International Publisher for Academic and Scientific Resources). Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. All types of similar lightweight concrete were prepared to present the same workability by adjusting the amount of superplasticizer. The results obtained in this study suggest that floor system made of cast-in-place concrete topping placed over the machine finished surface of precast concrete hollow-core units with no interfacial roughening does not offer the adequate interface shear strength required to develop a fully composite behaviour. Keep in suitable, closed containers for disposal. Calcium carbide residue (CCR) is a waste by-product from acetylene gas production. Cubes were cured for 3, 7, 14 and 28 days. Metal hydrides and Borohydrides such as Lithium aluminum hydride, Sodium hydride, Potassium borohydride. Its compressive strength is the main parameter which is brought under focus. The results showed that SDA is a good pozzolan with combined SiO2, Al2O3 and Fe2O3 of 73.07%. endobj Sell the collected swarf where you sell scrap carbide. Bogues model was used to determine the elemental and compound composition of cement when blended with the RHA and RHA-CCW. Interestingly, results obtained for the tensile strength also shows a similar pattern of strength development with that of compressive strength. The compressive strength at the age of 45 days for RCP mortar mix was found to be higher than that of OPC mortar and OPC mortar with silica fume mix by 10% and 8%, respectively. Calcium carbide is produced industrially in an electric arc furnace from a mixture of lime and coke at approximately 2000°C. This research considered the use of saw dust ash as a pozzolan in the production of concrete. 2015 Feb 13;8(2):638, Specifications and Conformity Criteria for co, ... One of such ways is to replace a percentage of Ordinary Portland Cement (OPC) in concrete. Calcium Carbide is FLAMMABLE and REACTIVE and a DANGEROUS FIRE and EXPLOSION HAZARD. heat island effects etc. In this research, we synthesized CCR and, An experimental study was performed to evaluate the horizontal shear strength of precast pre-stressed concrete hollow-core units with cast-in-place concrete topping through load testing of three full-scale specimens. mortars under different curing regimes using GGBFS as a partial replacement of cement. The waste must be stored sa fely and securely (i.e. The main component of CCR is Ca(OH)2, which can react with siliceous materials through pozzolanic reactions, resulting in a product similar to those obtained from the cement hydration process. Waste disposal: Arrange for collection by specialised disposal company. Bases on obtained results it is observed that the maximum compressive strength was achieved by sample with 5% GGBFS, although 10% GGBFS samples achieved higher compressive strength than the control sample with 0% GGBFS. The flexural strength properties of concrete was improved upon when RHA-CCW was used in concrete compared to RHA. The initial and final setting times were prolonged, while the drying shrinkage was significantly reduced. Toxicity might be due to alkaline condition of the dumpsite. This paper presents the results of an experimental study on the use of Calcium Carbide Wastes (CCW) as an admixture in a mortar. The maximum compressive strength results obtained for both RHA and RHA-CCW concrete were higher than the strength of plain concrete (0 % replacement) by 1.1 % and 14.7 % respectively. Initial and final setting times of Cement-CCW paste Slump of Cement-CCW mortar Figure-4 illustrate the slump of cement mortar admixes with varying percentages of CCW. out through employing different approaches in order to Numerous studies have been carried This work investigates the pozzolanic and filler effects of a residual SCBA in mortars. variables RHA and CCW. Chemical name :calcium carbide Supplier's details : Calcium Carbide Product use :Synthetic/Analytical chemistry. It was concluded that 5% SDA substitution is adequate to enjoy maximum benefit of strength gain. The specimens were divided into two groups, namely wide and narrow with nominal widths of 120cm and 55cm respectively. The calcium carbide reagent used with the Speedy tester is a hazardous product that must be handled with … Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification. Number of leaves was also significantly higher (p<0.05) in 100g plants (5.75±1.18) than 300g plants (1.75±1.18). This research try to tackle problem of the waste that is generated from construction field such as calcium carbide waste in the production of acetylene gas and calcium cyanamide. Therefore, the synthesized RCP was proved to be a sustainable active cementitious powder for the strength enhanced of building materials, which will result in the diversion of significant quantities of this by-product from landfills. Compressive strength test was carried out after, Calcium carbide residue (CCR) is a waste by-product from acetylene gas production. boxed and properly segregated) at ground level close to the front boundary of the property and easily accessible for a van. May react vigorously with oxidizing materials. At Timberwise our team of damp proofing specialists have a variety of tools at their disposal to identify dampness in properties. stream The use of CCWP and BLA in concrete will ensure economy in concrete production and a better way of disposing these wastes. Sugar cane bagasse ash (SCBA) is generated as a combustion by-product from boilers of sugar and alcohol factories. An additional specimen was tested with restraining mechanisms used at both ends to reduce the relative slip between the hollow-core unit and topping slab. We provide a packing and disposal service for Calcium Carbide, Picric Acid and similar compounds, including assessment, on-site and off-site disposal. significantly over years due to its sustainability and PC, some of which includes management of storm water SECTION 14 : Transport information UN-Number 1402 UN proper shipping name Calcium carbide The compressive and flexural strength of mortar prisms tested at 3, 7, 28 and 56 days indicate a positive increase in strength with increase in CCW content up to 2% by weight of cement and decreases with any further increase in the percentage of CCW content. Values comparable to 28 and 56days peak compressive strength values of 13.03 N/mm2 and 15.07 N/mm2 respectively obtained with the use of only cement as binder. 6.4 Reference to other sections For … Physical and chemical characteristics of RHA and BBA were first analyzed. Due to the Importance of Waste Water Treatment. The results of the study demonstrated that addition of CCW increased the consistency, but decreased both initial and final setting times of cement at 5% CCW content. environmentally friendly. In this study rice husk ash (RHA) and broiler bed ash from rice husk (BBA), two agricultural waste materials, have been assessed for use as partial cement replacement materials for application in lightweight concrete. concrete increases significantly when compared with the A mortar of ratio l:3 (cement to fine aggregate) at a constant water-cement ratio of 0.5 was prepared in the laboratory and CCW was added to the mix at a percentage of 0, 1, 2, 3, 4, and 5 by weight of cement respectively. control mix. %���� Get contact details & address of companies manufacturing and supplying Calcium Carbide, 75-20-7, CaC2 across India. The compressive strength of concrete with SDA was lower at early stages but improves significantly up to 90 days. Oxide composition analysis of CCWP and BLA confirm their status as non pozzolanic material rich in CaO component and pozzolanic materials, respectively. Slump and compacting factor tests were carried out on the fresh concrete and compressive strength test on hardened concrete. 2 0 obj The initial and final setting times were prolonged, while the drying shrinkage was significantly reduced. supplementary cementitious materials and up to 20% The increase in the water, Furthermore, the initial setting time of cement-CCW, significantly with age. �e��t�ˋ� 2`�����-�ŎE�Z�H�W��~��v+i���&@�@=�{p���_Z���W����^Ç�(���)'Q�����p�آR�p� `�/ �����1�>!�! Waste King is widely recognised in Gateshead as being a reputable provider of all Hazardous Waste Disposal services.. We operate throughout Gateshead and the wider Tyne and Wear area, with a great reputation for our low cost services. SECTION 13 – DISPOSAL CONSIDERATIONS Calcium carbide should be consumed in industrial processes if possible. In conclusion, provided adequate curing is maintained, the used of RHA-CCW gives a better performance in concrete than RHA. Initial and final setting time test was carried out on mortar specimens with the same percentage of RHA and RHA-CCW. silica fume through a chemical combustion technique to produce a new reactive cementitious powder (RCP). The whole experiment was replicated 4 times. This growth reduces drastically as the concentration of spent calcium carbide increases above 100g concentration level of spent calcium carbide. Properties such as setting times of pastes, flow, and compressive strength of mortars were investigated when calcium carbide residue and rice husk ash were used as cementitious material. Concrete cubes, cylindrical and beam specimens containing different percentages of RHA and RHA-CCW by weight of cement (5, 10, 15 and 20 %) were cast. 3 0 obj Response surface methodology was used to derive the 2011;33(3):436, CPHA ) Concrete in Aggressive Environme, calcium carbide residue and its influence on ceme, properties. Put solid CaCl2 in a sealed box in the trash if local law allows it. industrialization in developed countries, generation of agricultural and industrial, from meeting the infrastructure needs of their, has economic, ecological and energy saving merits [, compressive strength and workability with increasing, results have been reported by Ogork and Audu [15, Figure-1. The workability, flexural strength, replacement was made for both RHA and CCW in the PC The powdered mixture of the acetylide and iron oxide and iron chloride burns violently upon ignition, producing molten iron. RHA concrete attains it maximum strength at 10 % replacement. The formula for this process: The final products are suspended in water. Twenty- eight (28) and Fifty-six (56) days peak compressive strength values of 13.23 N/mm2 and 15.97 N/mm2 respectively was obtained when 5% CCWP was mixed with 5% BLA plus 90% cement. 0800 9 10 11 20 © 2008-2020 ResearchGate GmbH. 5, 862]. Setting times, slump, compressive and microstructural analysis tests were, This paper examines and present the findings of the physical and mechanical properties of concrete containing rice husk ash (RHA), and the blend of rice husk ash with calcium carbide waste (RHA-CCW). It has been found that under the same temperature the amount of C3S in the clinker of calcium carbide slag batching was slightly less than that of limestone batching. Calcium carbide reacts vigorously with water to produce calcium hydroxide and acetylene gas.. CaC 2 + 2 H 2 O → C 2 H 2 + Ca(OH) 2. Disposal: Contact a licensed professional waste disposal service to dispose of this material. Comparing with limestone materials, calcium carbide slag had a higher content of CaO, and the main mineral phase constituent of limestone was CaCO3, whereas the main mineral of calcium carbide slag was Ca (OH)2 with a lower decomposition temperature. No occupational exposure limits have been established for Calcium Carbide. However, it is not yet clear if these improvements are associated to physical or chemical effects. Properties Chemical. This may be attributed to the, secondary hydration reaction of Portland cement and, From the experimental results described ab, concrete. 1 0 obj mixes. What is a Calcium Carbide Test? Thus, it is possible to use CCR as a substitute for Portland cement in concrete. University of Nottingham, Malaysia Campus, Optimizing the Mechanical Properties of Pervious Concrete Containing Calcium Carbide and Rice Husk Ash using Response Surface Methodology, Setting time and standard consistency of Portland cement binders blended with rice husk ash, calcium carbide and metakaolin admixtures, Sawdust Ash as an Inhibitor for Reinforcement Corrosion in Concrete, Effect of calcium carbide waste on the growth and biomass of Okra(Abelmoschus esculentus l. Moench), Properties of Chemically Combusted Calcium Carbide Residue and Its Influence on Cement Properties, Saw Dust Ash as Partial Replacement for Cement in Concrete, Rice husk derived waste materials as partial cement replacement in lightweight concrete, Saw Dust Ash Substitution for Cement Pastes-Part I, Using Calcium Carbide Slag as One of Calcium-Containing Raw Materials to Produce Cement Clinker, Size Effect Study of Sawdust Ash-Concrete under Compressive Load, Cementing Material from Calcium Carbide Residue-Rice Husk Ash, Pozzolanic activity and filler effect of sugar cane bagasse ash in Portland cement and lime mortars, Behaviour of FRP Confined Reinforced Concrete Columns Under Eccentric Load. Ensure complete and accurate classification. I know what it's used for, from reading on the net, but I need to know a way of disposing the stuff. 5kg of soil was polluted with varying concentrations of spent carbide (100g, 200g and 300g) with the control having 0g of spent carbide. !k)����W@$"��-A�P Composed mainly of silica, this by-product can be used as a mineral admixture in mortar and concrete. Toxicity might be due to alkaline condition of the dumpsite. The loss of composite behaviour corresponds to an interfacial shear strength value smaller than the values of 0.55MPa and 0.52MPa limits specified by the (ACI, 2011) and (AASHTO, 2012) design guidelines. Materials. In the present investigation, the modern analysis methods of XRF, XRD, DTA/TG, petrographic analysis were used to compare carbide slag and limestone, and the results showed that the main chemical compositions of the calcium carbide slag were basically the same with that of natural limestone. Calcium carbide, also known as calcium acetylide, is a chemical compound with the chemical formula of Ca C 2.Its main use industrially is in the production of acetylene and calcium cyanamide.. Calcium carbide might be bactericidal and fungicidal leading to cellular physiology, growth retardation, death, general loss of biodiversity and reduction of ecosystem processes. Chemical waste generators must also consult local, regional, and national hazardous waste regulations.